Salman Abedi, the bomber behind the Manchester suicide bombing, is seen in this image taken from CCTV on the night of the attack in this handout photo released to Reuters on May 27, 2017.[Photo/Agencies]

LONDON -- Police in Greater Manchester released images Saturday night showing suicide bomber Salman Abedi on Monday night, taken shortly before he detonated a bomb at Manchester Arena killing 22 people and injuring 116 adults and children.

The images show Abedi wearing a baseball hat and a dark jacket. Police hope the release to the public of the images taken from closed circuit cameras may help trace more witnesses who spotted the terrorist before his deadly mission at the end of a concert by the American singer Ariana Grande.

Police have appealed to anybody with information about Abedi from May 18 to contact them.