SRI LANKA — A set of coordinated bomb explosions on Easter Sunday in churches and hotels in Sri Lanka killed 207 and injured 450. Here is a timeline of how the bombings occurred.

According to Reuters, from 8:45 a.m. to 9:05 a.m. on Easter Sunday, six bombs went off at three luxury hotels and three Christian churches in three different cities in Sri Lanka: Colombo, Negombo, and Batticaloa. Officials say most of the bombs were set off by suicide bombers.

The first string of explosions occurred in the following places: the Shangri La hotel in Colombo, St. Anthony's Church in Kochchikade, Kotahena, Colombo, St. Sebastian Catholic Church in Negombo, the Kingsbury Hotel in Colombo, the Cinnamon Grand Hotel in Colombo, and the Zion Roman Catholic Church in Batticaloa.

At 1:45 p.m., a seventh explosion went off at an inn close to the national zoo in Dehiwela, Colombo. At 2:15 p.m. another explosion followed, this time during a police raid at a house in Dematagoda, Colombo. Three officers were killed in the attack.

At 5:20 p.m., authorities announce 207 people had been killed and 450 were injured. At 9:30 p.m., police arrest 13 Sri Lankan suspects. Later that same day, at around 10:30 p.m., police report a bomb attack on a mosque and arson attacks on two shops owned by Muslims.