The United States and Britain have accused Russia of fabricating a story about chemical weapons use by Syrian rebels.

In separate statements issued on Friday, London and Washington also warned Moscow against undermining a shaky truce in the war-torn country.

Russia’s defence ministry said rebels fired weapons containing chlorine on November 24 on the government-held city of Aleppo, with Syrian state media reporting that around 100 Syrians were hospitalised for breathing difficulties.

The rebels denied the allegations and said that the government was attempting to frame them.

Read more about the U.S.’ statement here.