A massive fireball damaged a well-known Russian bridge Saturday that links the Crimean Peninsula and the Russian mainland, according to multiple reports.
The explosion will likely cause an immediate blow to Russia's supply route to troops fighting in southern Ukraine.
The Kerch bridge has been a longtime symbol of Russian President Vladimir Putin's claim to the Crimean Peninsula.
As a response to the explosion, Putin signed an order heightening security on the bridge late Saturday, the AP reports. Russia's federal security service, known as the FSB, will be in charge of security measures at the bridge.
Putin has also ordered an investigation into the Kerch Bridge "emergency" in Crimea, Russia's state-run TASS news agency reported Saturday.
The Kerch Strait Bridge, which runs for 12 miles, was rocked by an explosion of a truck early Saturday morning, Russia’s Investigative Committee said in a statement, per NBC News.
The explosion “
resulted in the ignition of seven fuel tanks of a train heading towards the Crimean Peninsula,” the statement said.
Multiple lanes of the bridge reportedly crashed into the Black Sea. Images show the entire bridge encapsulated by a large fireball.
The full extent of the damage, including deaths and injuries, remains unclear.