thomas e. kernsry school, cheers. >> cheers. >> and the best of luck to all the gentlemen there. that's "cbs overnight news" for this monday. for others check back for the morning news and of course cbs this morning. from the broadcast center in new york city, i'm dimarco morgan. >>> this is the "cbs overnight news." >>> hi, everyone, and welcome to the overnight news. i'm dimarco morgan. at least seven are dead and more than 30 are in hospitals following a night of terror in london. isis is now claiming responsibility. three attackers are also dead, killed by police. a dozen other suspects, several of them women, arrested sunday. saturday's knife and van attack comes less than two weeks after a concert bombing in manchester. sunday, prime minister theresa may declared enough is enough, as she called for a crackdown on evil extremism. and singapore, prince harry joined muslims breaking their ramadan fast. we have a team of correspondent. we begin with elizabeth palmer. >> reporter: just after 10:00 l