British Prime Minister Theresa May has announced that police have identified the three assailants involved in the attack in London on Saturday night, which killed seven people and wounded 48 more. An additional 11 people have been taken into custody, but the threat level remains severe, she said. The names of the attackers will be released, police have said, as soon as “operationally possible.” Officials are working to determine if those involved in the attack were part of a wider network. Metropolitan Police Commissioner Cressida Dick said a “huge amount” of evidence has been collected from the van used in the attack and in police raids. Police are still working to identify all of the victims who were killed.