15:20, Wed, May 6, 2026 Updated: 15:20, Wed, May 6, 2026
Mayport Naval Station (Image: X)
Naval Station Mayport in Jacksonville, Florida, has been placed on lockdown following reports that an unauthorised vehicle entered the base.
The complex is a major United States Navy installation on Florida’s Atlantic coast, serving as both a naval air facility and a deep-water port for Navy ships.
A social media user on X posted footage appearing to capture a voiceover at the base saying: “Lockdown, lockdown due to an active threat.”
All gates have reportedly been closed to both inbound and outbound traffic while security personnel investigate the incident.
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What is Naval Station Mayport?
Located near Jacksonville on Florida’s Atlantic coast, Naval Station Mayport is one of the United States Navy’s most important military installations. The base sits at the mouth of the St Johns River and provides direct access to the Atlantic Ocean for Navy ships and aircraft.
The installation serves as both a naval air facility and a deep-water port for warships. It supports a wide range of military operations including fleet deployments, maritime security missions, training exercises, naval aviation activity and logistical support.
Naval Station Mayport is home to several guided missile destroyers and helicopter squadrons and is considered a key fleet concentration area on the East Coast. The base also plays an important role in Atlantic and Caribbean operations, NATO exercises and humanitarian response efforts.
erial view of Naval Station Mayport (Image: Getty)
Video footage citing 'active threat'
A user on X has posted this footage of a voiceover at the base appearing to say "lockdown, lockdown due to an active threat"
Gates closed
All the gates at Naval Station Mayport are closed to inbound and outbound traffic as security investigates an unauthorized vehicle that accessed the base.
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Mayport Naval Station on lockdown
Mayport Naval Station in Jacksonville, Florida, has been locked down after reports that an unauthorised vehicle entering the base.
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