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Dangerous military device found abandoned on California beach

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Cite

Andrews, E. (2026, September 28). Dangerous military device found abandoned on California beach. New York Post. https://nypost.com/2026/09/28/us-news/navy-military-device-washed-up-on-california-beach-and-taken-to-home/

Dated when The Aporia collected the article, usually within hours of publication. Check the original for its exact date and byline.

New York Post · collected 2026-09-28 · by Erica Andrews

Quick Summary

A Navy MK25 phosphorus marine marker, which can burn at up to 3,000 degrees Fahrenheit and is highly toxic, was found on a California beach by a concerned citizen who took it home before contacting authorities. The Ventura County Sheriff’s Bomb Squad and Navy explosive experts from Point Mugu were alerted and safely disposed of the device last week in Ojai. Officials warned that such devices remain dangerous even after being wet or used and can spontaneously ignite or explode when moved. Similar incidents have been reported along Southern California beaches recently, possibly due to powerful storms and rough ocean conditions caused by hurricanes and El Niño.
Written by AI on 2026-09-28, from this article's own text only (the story summary below draws on all the coverage).

AI analysis

Story summary

A beachgoer found a Navy MK25 phosphorus marine marker, capable of burning at 3,000 degrees, on a California beach and brought it home, thinking they were helping by removing a suspicious object. The Ventura County Sheriff’s Bomb Squad was alerted to this incident last week when the individual contacted law enforcement with the device. Navy explosive experts from Point Mugu also responded to ensure its safe handling.

The Ventura County Sheriff's Bomb Squad warned that such actions are extremely dangerous, as residual phosphorus can dry out and reignite or explode even after being soaked in seawater. This incident occurred amid concerns about powerful ocean conditions due to El Niño, leading Governor Gavin Newsom to declare a precautionary state of emergency for coastal communities facing threats and existing damage.

Written for “Abandoned Military Device Found” on 2026-11-01, grounded in this article and the 0 other(s) covering the same event.

Story

📰 Abandoned Military Device Found
Other · 1 article(s) covering the same event.

Compared with similar articles

Nothing to compare against. No article is close enough to this one for the pipeline to have linked or judged the pair.
How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
17
sentences that state something as happening or true
Uncertain
35%
6 of 17 hedged ("reportedly", "may", "according to")
Leaning
not political
takes no side on a contested political question
Publisher signals
66/100
New York Post's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
1
Other
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-09-28 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

New York Post · 15868 article(s) · 35 correction(s) detected
Running correction rate · 35 correction(s)

Who wrote this

Erica Andrews
41 article(s) here · 1 carrying a prediction
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Also by Erica Andrews
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 41 articles by Erica Andrews →

Topics

California MK25 Navy The Ventura County Sheriff’s Bomb Squad Ventura County

Subjects

California GPE · 3× Navy ORG · 2× The Ventura County Sheriff’s Bomb Squad ORG · 2× Ventura County GPE · 2× Gavin Newsom PERSON · 1× Ojai GPE · 1× Point Mugu GPE · 1× The Orange County Sheriff’s Department ORG · 1× Ventura County’s GPE · 1× the US Army ORG · 1×

Narrative

California has also been bracing for powerful ocean conditions amid El Niño, with Gov. Gavin Newsom declaring a precautionary state of emergency and several coastal communities issuing their own local emergency declarations in response to existing damage and looming threats.
framing: mixed · carried by 1 article(s) · first seen 2026-09-28
🔮 The unnamed beachgoer apparently feared the suspicious-looking object could pose a threat to others and decided to remove it from the sand before calling law enforcement.
2026-09-28 · New York Post
Dangerous military device found abandoned on California beach · mixed framing

Claims (17 extracted, 6 hedged)

A military device capable of burning at 3,000 degrees washed up on a California beach and a well-meaning beachgoer unwittingly took it home. asserted
beachgoer → burn → it
The Ventura County Sheriff’s Bomb Squad and Navy explosive experts from Point Mugu were called to a home in Ojai last week after a resident showed up with a Navy MK25 phosphorus marine marker they had spotted along the waterline, according to a social media post by authorities. uncertain
they → call → authorities
The unnamed beachgoer apparently feared the suspicious-looking object could pose a threat to others and decided to remove it from the sand before calling law enforcement. uncertain
object → fear → enforcement
But officials warned the good deed could have ended disastrously. uncertain
deed → warn → ?
“Although well intentioned, marine markers, even if wet and expended, are extremely dangerous,” the Ventura County Sheriff’s Bomb Squad said. asserted
Squad → intentione → ?
The military markers contain phosphorus, which can remain hazardous even after the device has been soaked in seawater or appears to have already been used. asserted
device → contain → seawater
“Residual phosphorus can dry out once removed from the water, then spontaneously reignite or explode when moved,” authorities warned. asserted
authorities → dry → water
The devices can also burn at temperatures of up to 3,000 degrees and contain highly toxic material. asserted
devices → burn → material
The MK25 is a military pyrotechnic device designed to produce smoke and flames on the surface of the ocean, creating a visible reference point for aircraft or vessels. asserted
MK25 → design → aircraft
The markers can be deployed from the air or manually, according to the US Army. uncertain
markers → deploy → Army
Authorities did not reveal which Ventura County beach the device washed ashore on or how long it may have been bobbing around in the ocean before it was discovered. And it may not be the only piece of hazardous military equipment turning up along the Southern California coastline. uncertain
it → reveal → coastline
The Orange County Sheriff’s Department Bomb Squad chimed in on Ventura County’s social media warning, saying its crews have encountered several similar devices that washed ashore in recent weeks. asserted
that → chime → weeks
Officials suggested the recent string of discoveries could be connected to powerful storms and rough ocean conditions churning up the coast. uncertain
string → suggest → coast
Ventura County beaches have recently been battered by high surf and dangerous ocean conditions, including impacts associated with remnants of Hurricane Marie over Labor Day weekend and swells generated by Hurricane Polo. asserted
beaches → batter → Polo
California has also been bracing for powerful ocean conditions amid El Niño, with Gov. Gavin Newsom declaring a precautionary state of emergency and several coastal communities issuing their own local emergency declarations in response to existing damage and looming threats. asserted
communities → brace → damage
Whatever causes the next suspicious object to wash onto the sand, authorities say beachgoers should resist the urge to play bomb squad themselves. asserted
beachgoers → cause → squad
“If you come across an item that looks like a ‘bomb’ or other piece of military equipment please leave the item in place, evacuate the area, and call 911,” the sheriff’s bomb squad warned. asserted
squad → come → 911
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