COLOMBO—Sri Lankan intelligence officials were tipped off about an imminent attack by ISIS terrorists hours before a series of suicide bombings killed more than 300 people on Easter Sunday, April 21, three sources with direct knowledge of the matter said.
Three churches and four hotels were hit by suicide bombers on Sunday morning, killing 321 people and wounding 500, sending shockwaves through an island state that has been relatively peaceful since a civil war ended a decade ago.
