The toll in a series of eight blasts in Sri Lanka on Sunday has risen to at least 207, with over 450 people wounded, police spokesman Ruwan Gunasekera said.

Speaking at a press conference, he said three people had been arrested in connection with the attacks that mostly targeted high-end hotels in the capital and churches where worshippers were attending Easter services.

Gunasekera said the police were investigating whether suicide bombers were involved in all of the blasts.

Meanwhile, Prime Minister Ranil Wickremesinghe condemned the attacks — the worst act of violence since the end of Sri Lanka’s civil war a decade ago — as “cowardly”, as the government imposed an immediate and indefinite curfew across the entire country of 21 million people.

The powerful blasts - six in quick succession and then two more hours later — left hundreds injured and wrought devastation, including at the capital’s well-known St Anthony’s Shrine, a historic Catholic Church.

At least two of the explosions were carried out by suicide bombers, according to police sources and a hotel official.

Ravinatha Aryasinha, secretary to the foreign ministry, told reporters there were 27 bodies of suspected foreign nationals in the Colombo National Hospital.

A police official said earlier that 35 foreigners were among the dead and hospital sources said British, Dutch and American citizens had been killed, with Britons and Japanese also injured. A Portuguese man and two Chinese citizens were among the dead, news agencies in their countries reported. (AFP)

•Photo showsSri Lankan security personnel walk next to dead bodies on the floor amid blast debris at St. Anthony’s Shrine following an explosion in the church in Kochchikade in Colombo on April 21, 2019. ISHARA S. KODIKARA / AFP