Complex sentence: The ship was wrecked off the Nore sandbank in the Thames Estuary, near Sheerness, England in 1944 with around of explosives on board, which continues to be a hazard to the area.
Split into simpler sentences: The ship was wrecked off the Nore sandbank in the Thames Estuary, near Sheerness, England in 1944, whilst carrying a cargo of munitions. Around of explosives remain on board, which continue to be a hazard to the area.