In less than a year, Royal Navy has found and dragged out of Portsmouth Harbour three dangerous unexploded explosives of World War II. Luftwaffe bombers frequently targeted Portsmouth Harbour, which is the historic home of the Royal Navy, during the Second World War.
First of them, was a huge German mine which was found in November 2015. It was a 1,500lb (680kg) air-dropped mine. It was found on the seabed in The Solent, around a mile off Southsea. Second of them, was a torpedo discovered earlier September 2016. Last of them has been a 1,100lb (500kg) bomb, discovered by the end of September 2016. In all cases, explosives were moved away from high risk zones and exploited (controlled underwater explosion) by Royal Navy bomb disposal experts.
During the Second World War, the city, particularly the port, was bombed extensively by the Luftwaffe in the Portsmouth Blitz. Between July 1940 and May 1944, the city was hit by 67 air raids which destroyed 6625 houses and severely damaged 6549 of them. The air raids caused 930 deaths and wounded almost 3000 people, many of them in the dockyard and military establishments
Portsmouth Harbour was a vital military embarkation point for the D-Day landings on 6 June 1944. Southwick House, just to the north of the city, was the headquarters of the Supreme Allied Commander, US General Dwight D. Eisenhower. On 15 July 1944 an experimental V-1 flying bomb hit Newcomen Road, killing 15 people.
Usually, these World War II explosives are found when port authorities carry out dredging operations. This is often the case when the seabed is being prepared for the arrival of the Navy's new aircraft carriers like the HMS Queen Elizabeth.
In case of German air-dropped mine found in 2015, when this was exploited, onlookers heard a dull groan from the depths and then watched a huge plume of seawater surging more than 900ft into the air, as Sky News reported.