Academics from across the world have been showing their support for colleagues caught up in yesterdays terror attack.
Two people were killed and three others injured after the attack which started at a conference on prisoner rehabilitation run by academics at the University of Cambridge's criminology institute.
Former prisoner Usman Khan was invited to the 'Learning Together' fifth anniversary event on the north side of London Bridge.
Before the attack pictures were posted online of some of the seminars and workshops taking place as part of the event.
One of those speaking at the conference, UCLA Professor Bryonn Bain, tweeted moments after getting to safety.
Since the attack, academics across the globe have sent messages of support for those caught up in it.
Coracle Inside, a secure digital channel for education providers to access the prison estate, tweeted: 'Thinking of Learning Together at Fishmongers Hall today and hoping everyone is safe.
Others were keen to stress that while the terrorist Usman Khan was a former prisoner, so too were some of those who tried to stop him.
The Learning Together programme, according to its website, seeks to “bring together people in criminal justice and higher education institutions to study alongside each other in inclusive and transformative learning communities”.
Launched in 2014 by Dr Ruth Armstrong and Dr Amy Ludlow the programme offers courses in over a dozen prisons.