MOSCOW, October 22. /TASS/. Russian aircraft have delivered airstrikes on a bridge across the Euphrates River in Syria, cutting off the route of supply of the Islamic State (IS) militants from Iraq, chief of the Russian army General Staff’s main operations directorate, Colonel-General Andrey Kartapolov told reporters on Thursday.

"The bridge over the Euphrates River in the Deir ez-Zor area was a key facility in the [terrorists’] supply chain. Russian pilots delivered a pinpoint strike on this facility today, as a result of which the bridge has become unfit for further use by terrorists for their own purposes," Kartapolov said.

According to him, this route of supply for the militants of the outlawed in Russia Islamic State terrorist organization was detected by Russia’s drones. "I’d like to emphasise that the airstrike was made on the area that, according to our American partners, is fully controlled by IS formations," Kartapolov said.

He said that this airstrike helped the Syrian military that have for more than a year been surrounded in the Deir ez-Zor area to launch an offensive and reconquer the stronghold from the militants.

Earlier on Thursday, Russian Defense Ministry spokesman Major-General Igor Konashenkov said that Russian aircraft in Syria over the past twenty four hours had flown 53 sorties to attack 72 terrorist targets in several provinces. "Over the past 24 hours the crews of Sukhoi-34, Sukhoi-24 and Sukhoi-25SM planes flew 53 sorties to attack 72 terrorist targets in six provinces: Hama, Idlib, Latakia, Damascus, Aleppo and Deir ez-Zor. 

Russian Aerospace Forces destroyed 819 terrorist facilities since start of Syria operation 

 According to the General Staff, Russia’s Aerospace Forces have carried out 934 sorties since the start of Russia’s operation in Syria, and destroyed 819 terrorist facilities.

"Overall, since the start of use, 934 sorties have been carried out, during which 819 terrorist facilities have been destroyed," Kartapolov said.

He said that over the past week alone, 363 terrorist facilities have been destroyed, including 71 command posts and communication nodes, 10 plants producing explosives, 30 various depots of petroleum, oil and lubricants, ammunition and property, 252 strongholds, fortified localities and terrorist field camps.

Russia’s Aerospace Forces started delivering pinpoint strikes at facilities of the Islamic State terrorist group in Syria on September 30. The air group comprises over 50 aircraft and helicopters, including Sukhoi Su-24M, Su-25SM, Su-30SM and state-of-the-art Su-34 aircraft. On October 7, four missile ships of the Russian Navy’s Caspian Flotilla fired 26 Kalibr cruise missiles (NATO codename Sizzler) at militants’ facilities in Syria. Russia does not plan to take part in ground combat operations in Syria.

More than 250,000 Syrians have lost their lives in four-and-a-half years of armed conflict, which began with anti-government protests before escalating into a full-scale civil war. More than 11 million others have been forced from their homes as forces loyal to President Bashar Assad and those opposed to his rule battle each other - as well as jihadist militants from Islamic State.