Help later arrived to remove the u-lock, which had to be cut from the outside, and the trapped officers were freed. The group of protesters ‘moved on’, the force said.
Police later tweeted: ‘The front door to Central Precinct was locked from the outside with the u-lock.
‘It had to be cut off from the outside so those inside could leave. The rope was taken by protesters from the flagpole and tied to the roll-up doors on the Southeast corner…’
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