FILE - Sri Lankan Prime Minister Ranil Wickremasinghe (2nd R) arrives to visit the site of a bomb attack at St. Anthony's Shrine in Kochchikade in Colombo on April 21, 2019.
FILE - Sri Lankan Prime Minister Ranil Wickremasinghe (2nd R) arrives to visit the site of a bomb attack at St. Anthony's Shrine in Kochchikade in Colombo on April 21, 2019.

Steve Herman contributed to this report. 

U.S. President Donald Trump has called Sri Lanka's Prime Minister Ranil Wickremesinghe to express his condolences to the Sri Lankan people after the Easter Sunday bombings that killed nearly 300 people and wounded hundreds of others.

The White House said Prime Minister Wickremesinghe expressed appreciation for the president’s concern and updated him on the progress of the investigation into the attacks.

"President Trump pledged United States support to Sri Lanka in bringing the perpetrators to justice, and the leaders re-affirmed their commitment to the fight against global terrorism," a White House readout of the phone call said.

Sri Lankan security forces approach the site after a vehicle parked near St. Anthony's shrine exploded in Colombo, Sri Lanka, Monday, April 22, 2019.
Sri Lanka to Investigate Foreign Links of Group Blamed for Easter Bombings

VOA national security correspondent Jeff Seldin contributed to this report.

NEW DELHI, INDIA — Sri Lanka is imposing a state of emergency after blaming a little-known radical Islamist group for the series of devastating blasts that killed 300 people and injured hundreds of others on Easter Sunday.

A police spokesman said Tuesday 40 people have been taken into custody in connection with the massacre, which marks the deadliest violence to hit the South Asian island nation since their two-decade civil war ended in 2009.

U.S. Secretary of State Mike Pompeo also addressed the bombings in a press briefing Monday, confirming that some victims were American citizens.

"This is America's fight too," Pompeo told reporters. "Today our nation grieves with the people of Sri Lanka and we stand committed, resolved to confront terrorism together.”

Sri Lankan security personnel walk through debris following an explosion in St Sebastian's Church in Negombo, north of the capital Colombo, on April 21, 2019.
World Leaders React to Sri Lanka Explosions

Several world and religious leaders condemned the explosions on Easter at Sri Lankan churches and hotels that killed scores of people.

Dozens of foreigners — British, Dutch and American citizens — are believed to be among them the dead.

British Prime Minister Theresa May said attacks were "truly appalling."

"The acts of violence against churches and hotels in Sri Lanka are truly appalling, and my deepest sympathies go out to all of those affected at this tragic time," she tweeted.

"Our embassy and other parts of U.S. government are offering all possible assistance to Americans and the Sri Lankan government alike. We urge that any evil doers be brought to justice expeditiously, and America is prepared to support that," Pompeo added.

The U.S. State Department has updated a travel advisory to Sri Lanka, urging Americans to "exercise increased caution in Sri Lanka due to terrorism." It said "terrorist groups continue plotting possible attacks" in the country in the wake of Sunday's deadly blasts.