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.
Israel announced a major expansion of military operations in Gaza on Wednesday, saying large areas of the enclave would be seized and added to its security zones, accompanied by large-scale evacuation of population.
A fourth US Army soldier, who together with three others went missing in Lithuania last week when their vehicle sank in a peat bog, has been found dead, US and Lithuanian officials said on Tuesday.
The United Nations on Tuesday dismissed as "ridiculous" an assertion by Israel that there was enough food in the Gaza Strip to last for a long period of time, despite the closure of all 25 bakeries supported by the World Food Programme (WFP).
United Nations officials who surveyed earthquake damage in Myanmar urged the global community to ramp up aid before the looming monsoon season worsens already catastrophic conditions, with the death toll at 2,719 and expected to surpass 3,000.
Syria suffered a nationwide power outage on Tuesday night due to malfunctions at several points in the national grid, a spokesperson from the energy ministry told Reuters.