Detectives investigating the death of a man in Erdington have arrested a 27-year-old local man in connection with the incident.
The victim was found around lunchtime yesterday.
The local man was arrested last night in Kingsbury Road, near to where the victim's body was discovered, and is currently being questioned.
Police are trying to contact the victim's family to formally identify him.
A post mortem examination is due on Monday to find out exactly how he died.
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"She tried to take hold of the knife to stop him. He told her not to shout out and scream and get on her knees and beg."