"For our part, we are going to continue providing the Syrian government with assistance in fighting terrorist groups, led by the Islamic State and the Nusra Front. Undoubtedly, there should be neither delays nor concessions in this struggle," Churkin said at the session of the UN Security Council.
He noted that there were significant problems in the area of fighting terrorism in Syria, with extremists continuing to move through national borders, getting weapons and money as well as having access to chemical warfare agents.
"It is necessary to put an end to that," Churkin said.
The Russia-US brokered ceasefire regime in Syria came into force on February 27. The Nusra Front and the Islamic State terrorist groups, which are outlawed in Russia, are not part of the ceasefire deal.
