Putin: Russia may 'lose patience' and 'respond' in Syria

Vladimir Putin has warned that Russia might "lose patience" in Syria, and said the country had been showing "restraint" in the conflict to date.

Speaking to an audience in southern Russia, the president did not detail what actions he was referring to - but said troops may "respond" at some point.

"We ... don't respond to our partners in such a rude way. But everything has its limits. We may respond," he said.

His comments came after he accused the US-led coalition of violating a ceasefire agreement by bombing Syrian government forces last month.