At least seven people were killed and dozens more injured after an explosion struck a subway station in Minsk, Belarus, on Monday evening, state media reported.
About 50 people were taken to the hospital, and 35 were treated at the scene "with various injuries," Belarus' state-run news agency Belta reported.
President Alexander Lukashenko announced that his government will hold an emergency meeting and ordered officials to increase security on public transport, according to Belta.
Rescue workers in at least 12 emergency vehicles responded to the scene, carrying the wounded away in their arms or on stretchers, Russia's Interfax news agency reported.
The blast occurred at 6 p.m., a metro police spokesman told Interfax.
"We can't provide any more details. We are looking into what has happened," Interfax quoted the spokesman as saying.
CNN could not immediately reach officials in Minsk for comment.