The UK was among the first to express concern at allegations that chemical weapons had again been used in Syria, and called for them to be investigated.
We are aware of at least nine attacks in April in which the use of chemical weapons has been alleged. We consider it likely that chemical weapons have been used on at least some of these occasions. There are a number of pieces of information that suggest that only regime could have been responsible for these attacks, including the use of helicopters to deliver bombs to their targets and the fact that the attacks took place in opposition controlled areas. We have shared the information we hold with the OPCW.
We condemn the attack on the convoy carrying inspectors to Kafr Zita and urge all parties to the conflict to ensure that inspectors are given secure and unrestricted access to all relevant sites to enable the full facts to be established.