Belgian police have released CCTV footage in the hunt for the "man in hat" suspect in the Brussels attacks. He fled after his bomb failed to go off, a prosecutor said previously. The suspect is seen wearing a white jacket, a hat and is pushing a trolley with a suitcase on. There has been speculation over his identity. ITV News understands this is the first time the footage has been publicly available and the video was labelled with the incorrect date. Images taken from the CCTV have been previously circulated.