LONDON (AP) — Cambridge University has revealed that the woman stabbed to death in a London extremist attack was a former student.

Vice Chancellor Stephen Toope said in a statement Sunday that the woman, who hasn’t been named by police yet, had been part of the Learning Together program that was being celebrated when the attack broke out Friday afternoon.

He said the other person who died, Jack Merritt, was a course coordinator of the program. He also said one of the three people injured is a member of university staff.

Toope said "what should have been a joyous opportunity to celebrate the achievements of this unique and socially transformative program, hosted by our Institute of Criminology, was instead disrupted by an unspeakable criminal act.”

Attacker Usman Khan was shot dead by police.