Russian Su-25 ground attack jets prepare to land after return from Syria at a Russian air base in Primorsko-Akhtarsk, southern Russia, Wednesday, March 16, 2016.

:: Russia’s defense ministry says it is suspending coordination with the United States in Syria over so-called “de-confliction zones” after the Americans downed a Syrian government fighter jet.

The United States and Russia, which has been providing an air cover for Syria’s President Bashar Assad since 2015 in his offensive against the ISIS, have a standing agreement that should prevent in-the-air incidents involving US and Russia jets engaged in operations in Syria.

The Russian defense ministry said in a statement on Monday that it was suspending the deal after the US military confirmed that it downed a Syrian Air Force fighter jet on Sunday after it dropped bombs near US partner forces.

The ministry says it views the incident as Washington’s “deliberate failure to make good on its commitments” under the de-confliction deal.