The tug boat under Poole Lifting Bridge
The rising tide caused damage to the bridge. The boat sustained substantial damage, including to its radar equipment that will require costly repairs.
Officers investigating the incident are appealing for witnesses or anyone with information to come forward.
The tug boat was damaged as a result of the incident
Sergeant Sophie Williams, of the Poole South Neighbourhood Policing Team, said: “We are making a number of enquiries, including looking at CCTV.
“I would encourage anyone who witnessed the incident or has information about those responsible to please contact us.”
Anyone with information should contact Dorset Police at dorset.police.uk, by emailing 101@dorset.pnn.police.uk or by calling 101, quoting occurrence number 55210018340.