Guards in western India have foiled an attempt by prisoners accused of deadly bombings to tunnel their way out of jail using food plates as tools, officials said on Monday. Authorities at Sabarmati prison found a six-metre (20-foot) tunnel behind one of the barracks housing 14 men accused of killing 57 people in a series of bombings in Gujarat's main commercial city of Ahmedabad in 2008. "When I asked the inmates of the barrack about the tunnel, three of them confessed they had dug it," P.C. Thakur, a police inspector general, told reporters in Ahmedabad.