Police release video of attack suspect

Investigators looking for a discarded jacket which may give them 'invaluable information'

Belgian prosecutors launched a fresh appeal on Thursday for help in finding the suspected surviving attacker of last month's Brussels airport bombings, releasing a video of the escape route taken by the so-called "man in the hat".

Police have been desperately searching for the third suspect ever since he was seen on CCTV next to the two suicide bombers who blew themselves up at the airport in coordinated attacks that also struck a Brussels metro station. A total of 32 people died.