Police release remaining people arrested after London attack without charge

Ten of the people arrested on Sunday as part of investigations into the London Bridge attack have been released without charge, British police said on Monday, meaning that all 12 arrested in the aftermath of the incident have now been let go.British police revealed the named of two of three attackers Monday as Khuram Shazad Butt, 27, and 30-year-old Rachid Redouane. They said they are still working to identify the third man.READ MORE: Here’s what we know about the London attackersBritish police investigating Saturday’s attack are working to establish whether the militants were supported by anyone else, the head of the city’s police force said on Monday.WATCH: 2 suspects identified in deadly London attacks “A very high priority for us obviously is to try to understand whether they were working with anyone else, whether anybody else was involved in the planning of this attack and to find out the background to it,” London‘s Metropolitan Police chief Cressida Dick told BBC TV.“We’ve carried out searches in a variety of places in east London and we’ve seized a huge amount of forensic material, so we’re working very quickly.”READ MORE: Friends, family remember Canadian victim Christine ArchibaldBritish police are stretched by the number of people they believe could potentially commit an act of terrorism. There are 500 current investigations involving 3,000 potential suspects.“A small number of the highest priority investigations involve current attack planning, and these investigations command a significant proportion of our resource,” police said.In Britain’s third Islamist attack in as many months, three men rammed a van into pedestrians on London Bridge before running into the Borough Market nightlife area, where they slit throats and stabbed people indiscriminately. Seven people were killed and dozens wounded.

• With files from Associated Press