British officials say the U.K. is expelling three Syrian diplomats in protest at the killing of civilians, including the deaths of 108 people shot in their homes last week.

Officials, who demanded anonymity to discuss the action ahead of a planned public statement from Foreign Secretary William Hague, said Tuesday that Britain was taking the step as part of a coordinated effort with other nations, including France, Germany and Australia.

Syria's charge d'affaires, Ghassan Dalla, the country's top ranking diplomat in London, is among those being expelled.