Image copyright AFP/Getty Images Image caption The badly-damaged train came to a stop at the Tekhnologichesky Institut station
About 10 people have been killed in an explosion between two underground stations in St Petersburg.
The head of Russia's National Anti-Terrorist Committee said the blast hit the train between Sennaya Ploshchad and Tekhnologichesky Institut stations.
The committee said an explosive device was later found and made safe at another station, Ploshchad Vosstaniya.
President Vladimir Putin said all causes, including terrorism, were being investigated.
Initial reports suggested there had been two explosions, one at Sennaya Ploshchad and Tekhnologichesky Institut stations.
A spokesman for St Petersburg's governor said at least 10 people had been killed and 50 injured. But minutes later, Russian National Anti-Terrorist Committee said the death toll was nine, with 20 hurt.
Andrei Przhezdomsky, the head of the committee, said the explosion at 14:40 local time (12:40 BST) was caused by "an unidentified explosive device" but that the exact cause had yet to be determined.
Media playback is unsupported on your device Media caption Emergency services tend to the wounded outside a St Petersburg metro station
President Putin was in St Petersburg earlier on Monday but is now outside the city, his spokesman Dmitry Peskov said.
"I have already spoken to the head of our special services, they are working to ascertain the cause," he said, at a meeting with Belarus President Alexander Lukashenko.
In pictures: St Petersburg metro explosion
The entire St Petersburg underground network has now been shut down, and Moscow metro officials said they were introducing extra security measures as a result.
Image copyright Reuters Image caption The entire metro network has now been shut down
Image copyright AFP/Getty Images Image caption A helicopter landed on the street to transfer the injured to hospital
St Petersburg's metro system is the 19th busiest in the world, with more than two million passengers every day. It has not suffered attacks before.
However, several transport hubs in Russia have been attacked. In 2010 at least 38 people died in a double suicide bombing on the Moscow metro.
In 2009, a bomb exploded on a high speed train travelling between Moscow and St Petersburg, killing 27 and injuring another 130.
Both attacks were claimed by Islamist groups.
Are you in the area? If it is safe to do so, please get in touch with us. Email us at [email protected]
You can send your pictures and video to [email protected]
You can also contact us in the following ways:
are_you_metal on April 3rd, 2017 at 13:06 UTC »
Another bomb is reported to be found at Ploshchad Vosstaniya station, it's being deactivated now.
Edit: confirmed, there was another bomb at another station that, fortunately, didn't go off.
https://pp.userapi.com/c638823/v638823763/3a7e5/9a7OY888PbQ.jpg
mattcraiganon on April 3rd, 2017 at 12:15 UTC »
https://www.reddit.com/live/ypby9m8jmnt3
Live thread, will update with sources as they come in.
WolfofAnarchy on April 3rd, 2017 at 12:15 UTC »
I'm in the middle of class trying to listen to Russia24 with one ear, forgive me if I don't get everything 100% accurately. At the same time my friends would be at the same station around now I think, so I'm trying to reach them at the same time. I'm watching Russia24 live here. ALL TIMES GMT+1
Blast was in metro wagon
Multiple presumed dead
Putin informed, hasn't changed schedule yet
GRAPHIC PICTURE
Wagon that had the bomb was practically 'ripped in half' - Media reports
7 metro stations surrounding are closed.
Bomb went off in Sennaya Ploshad. Maps link/@59.9253701,30.31411,18z/data=!4m5!3m4!1s0x4696310202069217:0x34e38e44b870add1!8m2!3d59.9254365!4d30.3149955)
Important Russian Antiterror person says this was a well-planned attack [2:24PM]
[2:26PM] - Media reports 5 to 10 severely wounded
MULTIPLE BOMBS confirmed by Interfax
[2:30PM] AT LEAST 10 DEAD, MANY MORE INJURED
[2:35PM] President Putin met with FSB head. Putin gives condoleances to families.
[2:35PM] Extra metro station closed, totaling 8 closed metro stations.
[2:41PM] Putin live on TV giving condoleances to the families, and will 'use all possible resources' to give help to the wounded and the families of those that have been killed. -Rossiya24
Map of the locations.
[2:44PM] In addition to those killed, the number of injured in the St. Petersburg blast has risen to at least 30, according to the RIA news agency.
ALL PICS HERE. WARNING: GRAPHIC.
[2:56 PM] Spokesman for Saint-Petersburg Mayor: 2 being operated in hospital, 2 heavily wounded being prepared for operation, around 10 dead still the likely amount.
UNVERIFIED: At the metro station "Ploshchad Rebellion" found another explosive device. (by /u/mattcraiganon)
[approx 3:00PM] Fontanka: ANOTHER BOMB FOUND, DID NOT EXPLODE.
PICTURE OF UNEXPLODED BOMB:. thanks /u/topsng
VIDEO OF AFTERMATH thanks /u/I_Photoshop_movies
Full Putin quote:
I have to go now, I hope I have helped. Please stay safe everyone.
Gold? Damn. Thank you.