Fish bait digger finds bombs at Westcliff on Sea
More than 20 shells were blown up in controlled explosions after they were discovered by a person digging for fish bait.
The devices were found at about 09:00 GMT on Tuesday at Westcliff on Sea.
Thames Coastguard sent its Southend team to the scene and called in the Royal Navy Explosive Ordnance Disposal Unit.
The 25 bombs, thought to date back to World War Two, were destroyed in two separate controlled explosions.