Just hours after the assassination of a top Iranian nuclear scientist, Tehran demanded the United Nations Security Council condemn the killing and take action against those responsible, but diplomats say the call is likely to go unheeded.

At a minimum, the 15-member body could discuss Friday’s killing of nuclear scientist Mohsen Fakhrizadeh (above) behind closed doors if a member requests such a meeting or it could agree on - by consensus - a statement on the issue.