I have Sky News on now and the general party line is that although we provide funding for the white helmets, the video that was published is said to be people arriving at hospital with smoke inhalation. Soon as they started washing the people down the cameras came out.
No rebuttal as such yet, just that the ambassador has called the Russian accusation a "blatant lie" and "grotesque". The Russian are saying that our only interest is to oust Assad without any evidence.
They (Russians) are also today questioning the UK with regards to the investigation surrounding the poisoning in Salisbury of the ex-spy and his daughter.