Police have sealed off parts of Exeter after a person was found with a serious injury in Cowick Street.
Officers were sent to the area at around 16:30 GMT following reports of an assault, said Devon and Cornwall Police.
Cordons are in place around Cowick Street, Prospect Place and Cowick Park and Police say units will stay in the area throughout the evening and overnight.
A spokesperson said: “If anyone sees anyone acting suspiciously, we are advising members of the public not to approach them but to contact police immediately.” Detectives are appealing for witnesses and want to hear from anyone who was in the area from 16:00 GMT onwards or saw anything unusual.
