unsurprisingly the events in russia are fast moving. we are following them as closely as we can, including with some of our partner news agencies. this is coming from reuters. it is citing a witness, saying that russian military helicopters opened fire on the wagner military convoy on the m4 highway outside of the city of voronezh. that and for highway connects rostov on don to moscow. we had from russian authorities that that highway had been closed because they had their own military convoy processing down it. we also have these reports of this large fire, an explosion at this depot in voronezh, which is being attended to by over 100 firefighters and 30 vehicles. this is from the reuters news agency, they are citing a witness. the bbc is unable to independently verify this, but reports that russian army helicopters have opened