There is no information about injured Bulgarians in the two bomb explosions at the finish line of the Boston Marathon.

The report was made Tuesday morning by the Bulgarian Ambassador to the US, Elena Poptodorova, speaking for TV7.

One Bulgarian has participated in the race, but he is not among the injured either.

The Bulgarian Foreign Ministry has written on its Facebook page that the Bulgarian Embassy in Washington, DC, and the Consulate Office in New York are in constant touch with American authorities and Bulgarian expat organizations.

The Ministry advises Bulgarians in Boston to follow all directions of local authorities. The NYC Consulate Office phone number is +1 212 935 4646, while the one of the Embassy in DC is +1 202 387 0174.

8 000 to 10 000 Bulgarians live in the Boston area.

The death toll in the explosions has risen to three while more than 100 are reported injured, some seriously.

TV footage showed bloodied runners and spectators being treated at the scene and the road strewn with debris.

The FBI has said that they were looking at a "potential terrorist investigation," but it's not clear whether the origin was domestic or foreign. However, President, Barack Obama, has been more cautious in speaking of terrorism, stating in a TV address: "we will find out who did this" and that those responsible would feel the "full weight of justice."

Huge crowds, including thousands of foreign visitors, were in the area watching the runners take part in the world's oldest annual marathon.

It was also Patriots Day, commemorating the opening battle of the Revolutionary War.

The explosions occurred at about 2:45 p.m. Eastern Time, more than two hours after the first of the race's nearly 27 000 runners had crossed the finish line.