The explosion at Manchester Arena on Monday was a suicide attack, according to the chief constable of Greater Manchester police, who noted that the perpetrator acted alone in detonating an improvised explosive device that killed 22 people, including children, and injured 59 others.br br READ MORE: br RT LIVE br Subscribe to RT! br Like us on Facebook Follow us on Twitter Follow us on Instagram Follow us on Google+ Listen to us on Soundcloud: br RT (Russia Today) is a global news network broadcasting from Moscow and Washington studios. RT is the first news channel to break the 1 billion YouTube views benchmark.