A woman has been arrested on suspicion of murder following the death of a 36-year-old man in south-west Birmingham.
West Midlands Police said the man was found suffering a cardiac arrest at a house on Dover Close in Bartley Green shortly before 6.20pm on Friday.
A murder investigation was launched after he died at the scene, police said.
A 48-year-old woman was arrested and remains in police custody.
West Midlands Police launched a murder investigation on Friday after a Birmingham incident
A 38-year-old man died of a suspected heart attack which prompted the investigation
A 48-year-old woman has been arrested on suspicion of murder, police have confirmed
Detective Inspector Stuart Mobberley, from the force homicide team, said: 'Our investigation continues to establish the circumstances surrounding this man's death.
'Every bit of information is vital to our investigation and I would urge anyone who can help to get in touch.'
Anyone with information is asked to contact police via Live Chat at west-midlands.police.uk between 8am and midnight, or call 101 anytime.
To remain anonymous, contact Crimestoppers on 0800 555 111. Please quote log number 3970 of 16 October.