Three armed men on bicycles fired at a police patrol car in Lower Clapton on Tuesday night (January 10).
The attack happened shortly before 11.30pm as officers were monitoring CCTV cameras in Mandeville Street.
As the car was approaching the men, a single shot was fired in its direction and the suspects made off across a footbridge over the River Lee.
A handgun was recovered at the scene.
No one was injured and detectives are investigating.
The shooting follows the death of 26-year-old Tommy Lawrence outside the Glyn Arms pub in Mandeville Street last October.
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