The death toll from a series of explosions, targeting churches and hotels in Sri Lanka, has risen to 207.
Sri Lanka’s defence minister announced that seven suspects had been arrested.
The police, however, did not reveal the motive behind the attack. “We cannot say who is behind the attacks and what their intentions were until the investigation is complete,” police spokesperson Ruwan Gunasekara said.
Three churches in Kochchikade, Katuwapitiya and Batticaloa were targeted on Sunday, while Shangri La, Cinnamon Grand, Kingsbury and a forth hotel in Colombo were also hit.
Most of the attacks were thought to be suicide bombings, officials added.
Prime Minister Ranil Wickremesinghe has called a national security council meeting later in the day.
"I strongly condemn the cowardly attacks on our people today. I call upon all Sri Lankans during this tragic time to remain united and strong," he said in a Tweet.
US National Guard troops patrolling the streets of Washington DC as part of what President Donald Trump said was his crackdown on crime will begin carrying weapons on Sunday night, two officials said.
Israeli strikes hit the Yemeni capital Sanaa on Sunday in retaliation for Houthi missiles fired towards Israel, with a Houthi health official saying the attack killed six people and wounded 86.
Syria's first parliamentary election under its new administration, scheduled for September, will not include the southern province of Sweida and two other provinces due to security concerns, the electoral commission announced.
Ukraine launched a drone attack on Russia on Sunday, forcing a sharp fall in the capacity of a reactor at one of Russia's biggest nuclear power plants and sparking a huge blaze at the major Ust-Luga fuel export terminal, Russian officials said.
Ukrainian President Volodymyr Zelenskyy marked Independence Day on Sunday alongside Canadian Prime Minister Mark Carney, who said Ukraine would receive more than C$1 billion ($723 million) in military aid from a previously announced package next month.