The London Bridge suspect, Usman Khan, “attended an event earlier on Friday afternoon at Fishmonger’s Hall called ‘Learning Together,’” Metropolitan Police Assistant Commissioner Neil Basu said.

Basu continued by saying “we believe the attack began inside before he left the building and proceeded onto the Bridge.”

According to information on the "Learning Together" webpage, the group was celebrating a Five Year Celebration Alumni Event at Fishmonger’s Hall. The event was due to run between 11 a.m. and 4 p.m. (6 a.m. ET through 11 a.m. ET).

The group, according to its website, is affiliated with the University of Cambridge and two professors, Ruth Armstrong and Amy Ludlow, work at the Faculty of Law and Institute of Criminology.

The University of Cambridge tweeted the following message at 1:39 p.m. ET on Friday: “we are gravely concerned at reports that University of Cambridge staff, students and alumni were caught up in the incident at London Bridge.”

Later Friday evening, the vice-chancellor of Cambridge University Stephen J. Toope, said he was “devastated to learn that today’s hateful attack on London Bridge may have been targeted at staff, students and alumni attending an event organised by the University of Cambridge’s Institute of Criminology.”