Sri Lanka, April 21 -- At least 138 people were killed and hundreds more hospitalized from injuries in near simultaneous blasts that rocked three churches and three luxury hotels in Sri Lanka on Easter Sunday, a security official told The Associated Press, in the biggest violence in the South Asian country since its civil war ended a decade ago.

Two of the blasts were suspected to have been carried out by suicide bombers, according to the official, who spoke on condition of anonymity as he was not authorized to speak with reporters. Worshippers and hotel guests were among the dead, the official said.

The magnitude of the bloodshed recalled Sri Lanka's decades-long civil war, when separatist Tamil Tigers and other rebel groups targeted t...