An army bomb disposal squad carried out a controlled explosion in Scarborough after a mysterious container washed up near the Spa.
North Yorkshire Police was alerted at around 1.55pm yesterday after the object, which was later identified as an live submarine detection device, was found by a member of the public.
The 521 Explosive Ordnance Disposal Squadron, based at Catterick Garrison, was called to assess the container and the team concluded the safest course of action was to conduct a controlled explosion near the former Mr Marvel’s site.
The area was cordoned off and the controlled explosion was completed safely at around 7pm.
Army spokesman Tim Zillessen said: “It was a marine location marker, which was unsafe. It is a modern device which is usually dropped by an aircraft when it has spotted a submarine. It emits smoke and has flashing lights.”
The 200-metre cordon remained in place while a precautionary inspection of the area was completed and a metre-wide hole created by the explosion was made safe by Scarborough Council.