A man has been charged with the murder of an older man on Christmas Day.
Police and emergency services were called to a house in Adelaide's south on Sunday night following reports a man had been stabbed.
They found the body of a 71-year-old man inside a house in Reynella East.
A 45-year-old man at the same address was arrested and charged with murder.
He was refused bail and will appear in Christies Beach Magistrates Court on Wednesday.
Police said the two men were believed to have known each other.
Officers are also investigating a separate, unexplained death at the Keswick railway station.
The body of a 35-year-old man was found by emergency services when they were called to the station just after 6.30pm on Christmas Day.
The cause of the man's death is being investigated and people who may have seen anything suspicious in the area are being urged to contact Crime Stoppers.
