In the UK, government sources have told sections of media that they believe 23,000 people with extremist tendencies are living in the country. About 3,000 people are judged to pose a threat and are under investigation or active monitoring in 500 operations being run by police and intelligence services. The 20,000 others have featured in previous inquiries and are categorised as posing a residual risk.<br/>'<br/><br/>Meanwhile, Greater Manchester Police have released CCTV<br/>images showing suicide bomber Salman Abedi on the night he attacked Manchester Arena at the end of an Ariana Grande concert. The images are the first to show what the 22-year-old looked like when he carried out the deadly terror attack. The suicide bombing on Monday claimed 22 lives and injured 119 others.