AFP wrote:A female suicide bomber who set off a blast that killed herself and four police officers in the Sri Lankan capital Colombo may have been wearing a "bra bomb" ...

... Two constables who escaped with injuries have said the woman had shown them her bare midriff to indicate she was not wearing an explosives-filled jacket usually worn by suicide bombers ...

... Forensic experts were yet to make a formal report on the bombing but police said they were assuming that it was a bra bomb that could have been wired to go off when tampered with.

Usually suicide bomb jackets have a manual detonating device that would come down almost to waist level. No such detonating device was found on the woman, police said ...

... US and other diplomats in Colombo said that, despite the denials, the attack bore the hallmarks of the Tamil Tigers ...