Thousands of people have been remembering the 1,193 people who were killed when the ship they were travelling on was torpedoed off the Irish coast in 1915 during World War One. The Lusitania was a civilian liner.
Two home made bombs thought to be connected to the IRA have been found alongside guns and ammunition at woodland on the Isle of Wight.
The South East Counter Terrorism Unit is investigating after the explosives were found by a dog walker close to Parkhurst Prison last month.
Officers think they could be related to IRA prisoners who were being held on the island in the 1970s and 80s. Martin Dowse explains.