Obama expresses concern about Russia's actions in Syria

 US President Barack Obama expressed concern Thursday about Russia's military action in support of the Syrian regime, and urged Moscow to cooperate with Washington to find a way out of the crisis.

"The US remains prepared to work with Russia to try to reduce the violence and strengthen our efforts against ISIL, Al-Qaeda and Syria. But Russia has failed to take the necessary steps. Given the deteriorating situation, it is time for Russia to show it is serious about pursuing these objectives," Obama told reporters at a Pentagon news conference. 

ISIL is an acronym for the Islamic State group.