Three people were killed on Saturday in the explosion that collapsed portions of the bridge linking Russia to Crimea, a Russian official said.
The Russian Investigative Committee also said it had identified the driver of the truck that was allegedly blown up on the bridge.
Russia’s response should be tough, said Leonid Slutsky, chairman of the State Duma Committee on International Affairs.
“If the Ukrainian trace is confirmed in the state of emergency on the Crimean bridge, the consequences will be inevitable,” Slutsky wrote on his Telegram channel on Saturday.
He said he has no doubt that “Kyiv is behind the organization of this attack.” Ukrainian officials have not taken credit for the blast. Ukraine’s official government Twitter account tweeted the phrase “sick burn” after the explosion, but did not directly reference the blast.
“This is not just an emergency,” Slutsky wrote. “It could be an act of state terrorism.”
The railway infrastructure restoration has been started after the fire on the bridge was contained and extinguished, Crimean Railway said.
-ABC News’ Somayeh Malekian and Tanya Stukalova
