Kano - A young female suicide bomber killed at least six people and injured at least 28 others outside the main bus station in the north-eastern Nigerian town of Damaturu on Tuesday, witnesses said."A young girl came around at 07:00 and wanted to enter the bus station. She was denied entry because she refused to be searched by the security guards at the entrance," a witness, Sani Dankamasho, told AFP."She stepped out of the park. A private taxi then drove out of the park. As soon as the car came close, she detonated the explosive. Six people in the car were killed. She was also killed," he said.