Several police vans and cars are parked outside a pub on Argyle Street. A video posted on Twitter showes a pair of shoes and blood on a footpath. Officers were seen standing outside Traders Bar on the corner of James Watt Street.
Police tape extends across the street’s junction with Argyle Street, covering the entrance to the Premier Inn.
A witness told The Glasgow Times he heard “loads of screaming” before seeing a man lying on the ground.
He said the man appeared to be covered in blood.
He told the newspaper: “Literally just happened, was loads of screaming and guy is on the ground with blood all over him.
Glasgow: Police have cordoned off Argyle Street
Police cordoned off the Premier Inn in Argyle Street
“Looked like the guy came out of the Premier Inn hotel.”
He added: “The guy’s shoes and a load of blood still on the pavement.”
A photo posted online appears to show a person lying on the pavement outside Traders.
A police officer can be seen standing next to the person.
Police rushed to Argyle Street on Sunday afternoon following reports of an assault
Glasgow City Centre Police said they are treating the incident as a targeted assault.
The force said officers do not believe there is a threat to the wider public.
The force tweeted: “INCIDENT, ARGYLE STREET: We can confirm that we were called at 12.10pm on Sun 28 June, to a report of an assault in Argyle Street, Glasgow.
“Officers are currently at the scene.
“We believe this was a targeted assault and we do not believe there is a threat to the wider public.”
Chaos on streets of Glasgow as police swoop in to respond [INSIGHT]
What happened in Glasgow? Police confirm NOT a terror attack [ANSWERED]
Glasgow city centre evacuated: Police alert hours after stabbings [ANALYSIS]
Police guard the cordon near the scene of Friday’s stabbing in Glasgow
The police cordon thrown up on Sunday afternoon is less than a mile from the hotel where six people were stabbed last week.
On Saturday police named the man shot by officers during Friday’s attack at the Park Inn Hotel in West George Street as Badreddin Abadlla Adam, 28, from Sudan.
In a statement on Twitter, Police Scotland said the identity is “based on information the deceased provided to the Home Office earlier this year”.
A police officer was among the six people who were injured in the attack.
Three of the other people who were injured are asylum seekers, Police Scotland said, while two are members of staff.
Constable David Whyte, 42, thanked his colleagues for saving lives.
In a statement posted on Twitter by Police Scotland, Mr Whyte said the scene officers attending the incident were confronted with is something he will never forget.
Six people were injured in Friday’s stabbing incident
He added: “As the first responders on scene, myself and my colleague did what all police officers are trained for, to save lives.”
As of Saturday, all victims remained in hospital.
One person was in a critical but stable condition, while the others were stable.