A murder investigation has been launched following the death of a 23-year-old man in Cardiff.

The man was found by police at an address in Llandaff on Sunday afternoon.

A 23-year-old local man was arrested on suspicion of murder.

Formal identification has not yet taken place but police said his next of kin have been informed and are being supported by specialist officers.

South Wales Police said: “This is regarded as an isolated incident and detectives are not looking for anyone else in connection with this investigation.”

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People attending a Christmas Eve service at Llandaff Cathedral during the day were advised their travel plans could be affected by the investigation.

The cathedral said on Facebook: “To all those attending our service of nine lessons and carols this afternoon the Llandaff High Street car park is closed due to an ongoing police incident.

“Please factor this into your travel and parking plans.

“Our thoughts and prayers are with those involved.”