The incident happened at around 3.40pm on Friday when the vessel from the Metropolitan Police’s marine policing unit hit the structure, said the force.
It said in a statement: “A number of officers entered the water, but were recovered.”
The Met also said more officers responded alongside the London Ambulance Service and London Fire Brigade.
The force continued: “We understand five officers were injured and are receiving treatment. We await an update on the extent of their injuries.
“At this stage, we don’t believe any members of the public were involved or injured.”
The Met said the circumstances of the incident will be “thoroughly reviewed, but at this stage our priority is the wellbeing of the officers involved”.
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