North Korea detains another US citizen: state media

North Korea has detained another US citizen for committing "hostile acts," it said Sunday, its second arrest of an American in a fortnight with tensions high between Pyongyang and Washington.The arrest of Kim Hak-Song means that the North now is holding four US citizens, with the two countries at loggerheads over Pyongyang's nuclear and missile ambitions.Kim was detained on Saturday, the official Korean Central News Agency (KCNA) reported.