The blast "set fire to seven oil tankers being carried by rail to Crimea," Russian news agencies cited the national anti-terrorism committee as saying. Russia has launched a criminal probe into the event.
"According to preliminary information a fuel tank was on fire on one of the sections of the Crimean bridge, the shipping arches are not damaged," RIA reported citing a local official. The tank was being pulled by a train. There have been no deaths or injuries reported so far.
The road running along that part of the bridge was also badly damaged, according to the reports.
The Crimean city of Simferopol announced that they were considering putting in place a ferry connection.