A suicide bomber blew herself up at the main railway station in Sri Lanka's capital Sunday killing at least 10 people and wounding 93 more, officials said. "It is a suicide blast on Platform 3. The bomber has got down from a train and exploded," military spokesman Brig. Udaya Nanayakkara said, blaming separatist Tamil Tiger rebels. "The target appears to be civilians," Nanayakkara said. Telephone calls to rebel spokesman Rasiah Ilanthirayan's office were not answered Sunday. Anil Jasinghe, a doctor at Colombo National Hospital, said at least 10 people were killed and 93 more were wounded, 10 of them badly. "I was near my counter and I heard a big blast. When I looked behind I saw a policeman bleeding," said Ravindra Pinto, a ticket inspector at the station.