Costa Rican foreign ministry officials are trying to run down their countrymen in the Boston area to see if they suffered injuries in the Monday terrorist attack.
The Ministerio de Relaciones Exteriores y Culto said Monday that it had asked workers at consulates in New York and Boston to contact Costa Ricans.
The twin explosions seconds apart were at the finish line of the famous Boston marathon, and at least 30 Costa Ricans were known to have participated. There also may have been some expats from Costa Rica running the marathon.
U.S. President Barack Obama has vowed to bring to justice whoever was responsible for the explosions which killed three people and wounded about 140. Many suffered amputated limbs because of the nature of the explosion. One of the dead was a boy, 8, who was waiting for his father to finish the race.
President Obama says he has directed the full resources of the federal government to help state and local authorities protect Americans, as an investigation continues into the Boston explosions.
“We still do not know who did this or why, and people should not jump to conclusions before we have all the facts,” said Obama. “But make no mistake, we will get to the bottom of this and we will find who did this and we will find out why they did this. Any responsible individuals, any responsible groups will feel the full weight of justice.”
Obama did not specifically describe the explosions in Boston as a terrorist attack. But a White House official said “any event with multiple explosive devices, as this appears to be, is clearly an act of terror, and will be approached as an act of terror.
The official said a thorough investigation will have to determine whether the Boston attack was planned and carried out by a terrorist group, foreign or domestic.
Obama said he has spoken with U.S. congressional leaders. On Capitol Hill, House Speaker John Boehner led the chamber in observing a moment of silence.
The president was notified of the explosions minutes after they occurred and briefed by his new Homeland Security adviser Lisa Monaco and other members of the White House senior staff.
Obama telephoned Boston Mayor Tom Menino and Massachusetts Governor Deval Patrick to offer support.
The president also received a briefing from Federal Bureau of Investigation Director Robert Mueller and Department of Homeland Security Secretary Janet Napolitano.
In addition to the two explosions near the Boston Marathon finish line, Boston Police Commissioner Ed Davis also reported a fire at the John Fitzgerald Kennedy Library. But that blaze later was said to be unrelated to the blasts.
Police in other cities took steps to reinforce security.