 Artefacts from the site of the British warship "HMS "Coronation"", off Penlee Point, were allegedly stolen in 2011, and arrests were made in April 2011 over thefts from the warship HMS "London".As of July 2008, only two wrecks are designated as dangerous under section 2 of the act.These are the SS "Richard Montgomery" (designated in 1973), and the SS "Castilian" (designated in 1997), in both cases due to containing large amounts of explosives.