Army vehicle has been damaged in an explosive charge blast in southern Iraqi Diwaniya city on Saturday night, according to a police source on Sunday. \"An explosive charge had blown up against a US Army patrol on the main road passing through Diwaniya city on Saturday night, causing damage to one of its vehicles, but there was no report about human losses,\" the police source told Aswat Al-Iraq News Agency. He added that the American forces had forced a security cordon around the venue of the explosion, whilst US choppers flew overhead in Diwaniya city. Diwaniya, the center of the city carrying the same name, is 180 km to the south of Baghdad.