this is bbc news. the headlines: it's thought several people have been killed after a pedestrian bridge collapses onto traffic in florida. as the prime minister visits salisbury, scene of the nerve—gas poisoning, mrs may's allies show their support for her sanctions against russia. we do hold russia culpable for this brazen, brazen act and despicable act that's taken place on the streets of what is such a remarkable city. russia denies any involvement, as france, germany and the united statesjoin britain to condemn the attack. tests on a door from grenfell tower show it was only fire resistant for half the time it was meant to be. thousands flee the syrian enclave of eastern ghouta as government forces intensify their attacks on the rebel held area. also ahead this hour. thousands of students take part the bbc‘s school report. this year's project focuses

on the dangers of fake news. and later in meet the author, rebecca jones talks with the writer blake morrison about his new book the executor. good evening and welcome to bbc news. now to the latest on the collapsed bridge in miami. it has been g number bridge in miami. it has been the number i’ "’ who