Colombo (dpa) - The devastating series of attacks on Christian churches and hotels with nearly 300 dead in Sri Lanka has been carried out by suicide bombers. This was reported by a Forensic Defense Minister in Colombo. The motives of the assassins are still unclear. Police have now arrested 24 suspects who would be interrogated. Even a day after the attacks, no one was initially aware of the attacks. Overall, there were at least eight detonations on Sunday.