This is stated in a statement made by the Foreign and Commonwealth Office (FCO).
"This decision risks severely undermining the Minsk peace process, in which the JCCC has a specific role to play. It will also have significant consequences for those in the area, including the OSCE Special Monitoring Mission, as the JCCC has facilitated numerous local ceasefires in eastern Ukraine," the report reads.
The statement says that Russia’s withdrawal casts doubt on their commitment to a lasting ceasefire in eastern Ukraine and to the safety and security of the OSCE Special Monitoring Mission.
"The humanitarian situation in Donbas is growing ever bleaker and civilians continue to bear the brunt of this conflict. The UK calls on all parties to do all they can to alleviate humanitarian suffering and commit to a lasting peace," the FCO stressed.