A 49-year-old man and a 48-year-old woman were hospitalised while a 76-year-old was also found injured.
He has now been charged in connection with serious assault, and Police Scotland have revealed the 48-year-old man arrested at the scene has been detained under suspicion of burglary offences.
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The road remains closed.
Police Scotland said in a statement: “Argyle Street in Glasgow remains closed between Bunhouse Road and Sauchiehall Street, after a report of a man and woman injured following a disturbance within a property on Blantyre Street around 1.10am on Tuesday, 7 January, 2025.
“Emergency services attended and the man and woman, aged 49 and 48, were taken to hospital for treatment for treatment to serious injuries. A 76-year-old man was also taken to hospital for treatment to serious injuries.
“A 48-year-old man has been arrested in connection with robbery.
“The 76-year-old man has been arrested in connection with serious assault.
“Officers remain in the area as they continue to carry out enquiries.”