Detectives investigating a reported assault and robbery in Dorchester have made a second arrest.

Dorset Police received a report that between 6.30pm and 7pm on Wednesday, 31 July 2024 the victim – a teenage boy – was reportedly assaulted and their blue backpack was taken by two other teenage boys outside the Co-Op store in Trinity Street.

The victim and the two teenagers then went to Frome Terrace where the victim was allegedly assaulted and pushed into the river.

It is further reported that a man who intervened near the river was also assaulted and sustained minor injuries.

The victim – who required hospital treatment for serious head and facial injuries – and the reported offenders are known to each other.

Following further enquiries, a second teenage boy from Weymouth has been arrested on suspicion of causing grievous bodily harm with intent and robbery.

He has been released on police bail while the investigation continues.

A second teenage boy from Weymouth who was previously arrested on suspicion of inflicting grievous bodily harm, assault and robbery remains on police bail as enquiries continue.