Colombo, April 22 -- : The toll in the eight coordinated bomb blasts that rocked Sri Lanka during Easter celebrations rose to 290, police said on Monday.

Police spokesperson Ruwan Gunasekara told The New York Times that 24 people have been arrested in connection with the deadly explosions in which nearly 500 people were injured on Sunday.

Sri Lankan Prime Minister Ranil Wickremesinghe told the reporters that the authorities had prior "information regarding a possible attack" before the bomb blasts ripped through churches and hotels in Colombo and two other towns in the island nation.

"While this goes on we must also look into why adequate precautions were not taken," Wickremesinghe was quoted as saying by Al Jazeera.

The police said tha...