COLOMBO, Sri Lanka (AP) The death toll from the Easter suicide bombings in Sri Lanka rose to 359, police said Wednesday, as the countrys leaders vowed to overhaul the security apparatus amid a series of intelligence lapses before the attacks.

U.S. Ambassador Alaina Teplitz, meanwhile, told reporters that clearly there was some failure in the system. Sri Lankas leaders have said some of the countrys security units were aware before Easter of possible attacks, but did not share those warnings widely.

Teplitz said the U.S. had no prior knowledge of a threat before the bombings. She said a team of FBI agents and U.S. military officials were helping in the investigation.