Colombo (dpa) - In a devastating series of attacks on Christian churches and luxury hotels have killed at least 215 people in Sri Lanka. The coordinated explosions also injured more than 500 people, dpa hospital spokespeople said. In total, there were at least eight detonations, including three in churches and three more in luxury hotels. At first, no one committed to the attacks. According to the police, there were now 13 arrests. The Federal Foreign Office updated its travel advice shortly after the attacks and set up a crisis team.