Nairobi, September 2 At least 50 African Union soldiers are believed to have been killed and another 50 are missing after Shebab militants overran a military camp in southern Somalia yesterday, according to Western military officials. The attack on the camp in Janale, 80 km southwest of Mogadishu in the Lower Shabelle region and manned by Ugandan troops, now ranks as one of the deadliest yet against African Union Mission to Somalia (AMISOM) troops. “It is assessed that at least 50 AMISOM troops died,” said a briefing note sent to diplomats by Western military officials and seen by AFP. It said in total around 100 soldiers were “unaccounted for” after the attack. Somalia’s al Qaeda affiliate, which has recently lost a string of key bases in the face of an AMISOM offensive, said the attack was revenge for the killing of seven civilians by Ugandan troops at a wedding in the town of Merka in July. Western military sources said the attack began with the destruction of two bridges, cutting the camp off. A suicide car bomber rammed the base followed by an estimated 200 Shebab fighters who overran the camp.