welcome to bbc news i m lewis vaughanjones. our top stories: back home after six years in captivity in iran, nazanin zaghari ratcliffe arrives back in britain to be reunited with her family. ukrainian officials say a theatre in mariupol a welcome party watched her land and this is the seen line at raf brize norton where she is expected to leave shortly. this is the scene, live. ukrainian officials say a theatre in mariupol being used as shelter for civilians has been destroyed. russia denies attacking it. president biden brands vladimir putin a war criminal as the us pledges a further $800 million of military support for ukraine. russia counts its dead in the war, but vladimir putin insists the invasion