The Barbican has cancelled this Saturday's Just Jam event after concerns over public safety were raised by the City of London Police. The police have not specified what those public safety concerns are. Chris Sharp, Barbican Music Programmer, said: "The police have not shared the detail of their concerns with us. They have only advised us to cancel the event."

The Barbican statement says: "The Barbican has taken the decision to cancel the Just Jam concert that was scheduled to take place on 1 March 2014 on the grounds of public safety following dialogue with the City of London Police. As a responsible public venue we have to take police advice seriously and consider the safety of audience members, artists and our staff."

Scheduled to appear in the Barbican Hall (a seated event) were RP Boo, Omar Souleyman, Loefah & Chunky, JME & Big Narstie, Sophie, Mount Kimbie, Kurupt FM plus dancer Lightbulb.

Update: The City Of London Police have released a statement, in which they identify concerns as the fact "alcohol would be on sale at an event which would be allowing entry to anyone aged 16 or over" and that "there were worries about the lack of adequate measures in place to address potential issues that might arise, including overcrowding".