| A US national and three Afghans were killed when a gas tanker exploded in a prison in the capital Kabul on Wednesday, the defence ministry said. The ministry did not provide further details about the casualties in the accident at Pul-i-Charki prison, where hundreds of Taliban suspects transferred from the Guantanamo Bay detention facility in Cuba are being kept. “A gas tanker exploded while transferring gas to the prison’s kitchen. Four people were killed - the deaths included an American, his (Afghan) interpreter and two contractors,” the ministry said in a statement. The explosion triggered a fire, it said. Two soldiers and a civilian were wounded, the statement said, without providing details. “It was not a soldier,” a coalition spokesman said. |