A possible terrorist attack has taken place in the St. Petersburg Metro in Russia on Monday.

Explosions from a subway car have reportedly killed 10 people and have left more than 50 injured, according to reports.

Russian president, Vladimir Putin, says investigators have not yet determined whether or not this attack is linked to Islamic terrorism.

While authorities continue to gather all possible evidence to accurately assess the attack, Russia Today reported that the explosion was caused by an IED.

RT also reports that there were two blasts and at least one of the devices contained shrapnel, according to Sky News.

“The metro management said they received reports of an explosion inside the car, possibly of an improvised explosive device,” states the report.

“People were bleeding, their hair burned,” a witness told Russia’s Life News. “My girlfriend was in the next car that exploded. She said that he began to shake. When she came out, she saw that people were mutilated.”

Photos from the scene below show how horrendous the scene was and what some of the damage looked like.

В Петербурге на станции "Технологический институт" произошёл взрыв в вагоне метро. pic.twitter.com/vx3PoLbCgJ

— Лентач (@the_lentach) April 3, 2017

The suspects and motive have not been identified yet, but many terror experts are drawing parallels to Russia’s involvement in Syria to destroy ISIS as a motive of this being a retaliatory attack from ISIS.

Again, that has not been proven by Russian authorities at this time.

As the situation develops, we will update the story when we have more information.