Commemorations have been held in Russia to mark five years since the Kursk sank with the loss of 118 lives. The nuclear submarine went down in the Barents Sea after a torpedo exploded on board during manoeuvres. In the town of Kursk, a monument was unveiled to honour the victims. Ceremonies were held in other towns and cities around the country. Bereaved mother Sofia Leonova said: “I think they did everything they could to save the crew. But they should have told us immediately instead of keeping us in the dark for 12 days.”The anniversary has taken on extra significance coming a week after the dramatic rescue of a Russian mini-submarine in the Pacific. The high-profile international effort raised questions about why, five years on from the Kursk, Russia still has no modern deep-sea rescue equipment.