At least 13 US troops were severely injured following a deadly explosions in southern Kandahar province of Afghanistan earlier this week. The attack which took place in Panjwai district of southern Kandahar province on Sunday left at least four US troops dead, Afghan (Khaama Press) reported Thursday. According to the US media reports, a number of the injured service members are in critical health condition and have the troops have been taken to hospital for treatment purposes. US military sources said that the soldiers killed or injured were part of the 36 troops Ranger regiment that were out to capture a senior militant leader in Panjwai district. The officials further added that the attack was carried out by a woman suicide bomber who detonated his explosives while the service members were checking and questionning a man. The incident was followed by at least 13 more improvised explosive device (IED) explosions in the same area, which left more US soldiers killed or injured, the officials said.