other eyewitnesses recount bashir forst of the deadly blast. -- the sheer force of the deadly blast. no one has yet claimed responsibility for the attack. but it is believed to be the work of the islamist militant group. the network has carried out another bomb attack in the same area two weeks ago which killed at least 75. it is the latest in a long running campaign of terror by the group who want to create an islamic state in nigeria. over 1500 people have died this year as a result of their attacks. >> renewed warnings south sudan's conflict could ascend into genocide. they come from the u.s. secretary of state. he has arrived in the fledgling state. john kerry made renewed threats of sanctions and raised hopes more peacekeeping forces could be deployed to halt the bloodshed. he was speaking on thursday after holding talks with foreign ministers from ethiopia, uganda, and kenya. >> there are very disturbing indicators of the kind of ethnic tribal, targeted, nationalistic killings taking place that raise serious questions. were they to continue in the way they have been going could