Six near simultaneous explosions rocked three churches and three hotels frequented by tourists in Sri Lanka on Easter Sunday morning, killing at least 129 people and injuring over 400 others, in one of the deadliest blasts in the island nation’s history, officials said.

The blasts targeted St Anthony’s Church in Colombo, St Sebastian’s Church in the western coastal town of Negombo and another church in the eastern town of Batticaloa around 8.45 a.M. (local time) as the Easter Sunday mass were in progress, police spokesman Ruwan Gunasekera said.

Three explosions were reported from the five-star hotels – the Shangri-La, the Cinnamon Grand and the Kingsbury. Foreigners and locals who were injured in hotel blasts were admitted to the Colombo General Hospital.