An explosion in the metro station of Minsk, capital of the Republic of Belarus, was reported by witnesses that killed 11 people, according to the Associated Press.
The emergency ministry confirmed the incident, said BBC.
The Jerusalem Post said at least five people were killed.
At least 50 people were hospitalized.
The blast that happened at 17:55 local time (11:55 ET) at the Oktyabrskaya station, about 100 meters from the residence of authoritarian ruler Alexander Lukashenko.
The cause for the explosion is still not identified. There are reports saying it is due to a terrorist attack.
At least 12 emergency vehicles immediately came to the scene.
UK's The Telegraph said about 30 people were carried out of the station on stretchers including one with missing legs.
Smoke was seen coming out of the exits of the metro station.
A witness said the ceiling of the station collapsed following the explosion.
The country has been in a political tension since December after a huge protest against a presidential election ignited a crackdown where over 700 were arrested including seven presidential candidates.
The presidential election winner Lukashenko won the polls. He has ruled the Eastern European country since 1994.
Belarus is a country in Eastern Europe bordered by Russia, Ukraine, Poland, Lithuania and Latvia.
Details of this report here.