An explosion has reportedly taken place on the underground system in the Russian city of St Petersburg.
Horrific images from the scene show bloodied commuters lay on a platform at Sennaya station.
Eyewitnesses say an explosion took place amid reports of bombings. It comes as Russian President Vladimir Putin is in the city holding a meeting with the President of Belarus Alexander Lukashenko.
The blast happened at 2.30pm local time on the blue line of the underground system.
Three metro stations have now been closed, local media report.
“One eyewitness wrote on Twitter: “I was riding down the escalator and suddenly an explosive wave from below, echoing from the tunnel. The station is evacuated. ”
Several people have been injured after an explosion on a train in Saint Petersburg.
Pictures posted on social media show the door of a Metro train has been blown out in an explosion.
Other images showed passengers lying on the ground of a station platform.
1:27pm
Second blast reported in carriage at different station
The second explosion is reported to have happened at around 2.40pm (12.40pm BST) on the blue branch of the St. Petersburg metro at the station “Sadovaya”. A device reportedly exploded in the carriage.
1:20pm
At least 10 dead after blast from shrapnel-filled device
According to Tass News Agency, preliminary information suggests that 10 people have died in the explosion and 30 people have been injured.
The blast is said to have involved a device filled with shrapnel, Interfax said.
There appear to have been blasts at two St Petersburg Metro stations, RIA cites sources.
1:16pm
‘Unknown number of people injured’
Russian state media said the explosion has injured an unknown number of people.
Other reports said “at least 10 people” have been hurt. It is unclear at this stage if anyone has died.
1:08pm
Several people have been injured – police source
A police source told Russian news agency Tass: “A blast occurred at Sennaya Ploshchad metro station, several people have been injured.”
No one has been confirmed killed.
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