Two teenagers have been arrested after a man was found dead in a river.
Detectives launched a murder investigation after the body of a man in his 50s was discovered in the River Cam, police said.
A member of the public made the discovery at 2am on Wednesday at Jesus Green, Cambridge.
Police arrested an 18-year-old man and a 17-year-old boy in connection with the incident.
They are in custody at a police station in Cambridge, a spokesman said.