The officers wearing white suits were seen working near the main road’s junction with Blantyre Street.
The area has been cordoned off since around 1am this morning, when emergency services were called to reports of a man and woman being injured.
The 48- and 49-year-old were both taken to hospital, along with a 78-year-old man.
A 48-year-old man has been arrested in connection with the incident.
Argyle Street is still closed between Bunhouse Road and Sauchiehall Street and drivers are asked to avoid the area and find alternative routes.
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Pensioner, 78, hospitalised after early morning incident
(Image: Gordon Terris, Newsquest) 
