 The Russian operator of passenger trains to temporarily occupied Crimea has reported that trains have been stopped near the Crimean bridge because of blocked traffic. The bridge had been closed for more than eight hours, and Russian news outlets repert that Ukrainian uncred surface vessels have sunk the patrol ship Sergei Kotov, later. A source from Defense Intelligence of Ukraine confirmed that Sergei Kotov, a Russian project 22160 patrol ship, had been hit by Ukrainian naval drones on the night of March 5. The vehicular traffic on the Kerch bridge has been temporarily suspended. Those who are on the bridge and in the inspection area were asked to remain calm and follow the instructions of transport safety officers, Russian telegram channels reported. The bridge has been closed since 2335 on March 4, for more than eight hours. Grand Service Express, the Russian operator of passenger trains to Crimea, announced that trains had been stopped in the area of the Crimean bridge due to blocked traffic .4 trains from Crimea and 5 trains heading to the peninsula have been stopped. Trains will start running as soon as it is allowed. The company said Russian telegram channels reported that residents of Kerch reported explosions overnight, according to various sources. There were from three to five of them the IT is reported that Crimea was supposedly attacked by missiles and drones at night, with the Kerch bridge supposedly being one of the targets AT the same time. A number of Russian news outlets have claimed that the project 22160 patrol ship Sergey Kotov was sunk as a result of the attack, the Kerch bridge is a strategically key link between Russia's Krasnodar region and the Crimean Peninsula, which Moscow has controlled since it annexed Crimea from Ukraine in 2014. Ukraine has repeatedly targeted the bridge in the more than two years of all out war and has used Western supplied long range missiles to attack the crucial supply route for Russian troops.