The police officer injured during the Glasgow stabbing incident has been named as Constable David Whyte.
Chief Constable Iain Livingstone said Constable Whyte had been "seriously injured in the course of doing his duty" at the scene of the incident at the Park Inn Hotel on West George Street.
In a statement this evening, Chief Constable Livingstone said: "Terrible incidents such as we have seen today are, thankfully, very rare in Scotland. This event has understandably shocked the people of Glasgow, and indeed, the whole country.
“My thoughts and very best wishes are with those who have been injured and their families, including our colleague Constable David Whyte who was seriously injured in the course of doing his duty. I offer my personal support to all those affected.

“Officers have once again run into danger to protect their fellow citizens. Their professionalism as police officers was outstanding. I pay tribute to their bravery, selflessness and commitment to protecting the public.
“I briefed the First Minister and the Prime Minister earlier today on the circumstances and advised them both that we are not treating the attack as a terrorist incident.
“It is essential enquiries are now carried out to establish the full circumstances and all speculation must be avoided.
“Scotland is a safe place to live and work. We have cohesive communities who work with their police service to maintain our peaceful and respectful way of life.
“In the context of the current health emergency, and to respect those injured today and the people of Glasgow, I ask everyone to exercise personal responsibility. Please, do not gather in crowds this weekend.”
Armed police officers were seen storming a building within a cordon and loud shouting was heard.
Witness Craig Milroy, who saw the aftermath of the incident from an office building nearby, said he had seen four people taken away in ambulances.
He said: "I saw a man lying on the ground, of African descent, with no shoes on. He was on the ground with someone holding his side - I don't know if it was a bullet wound, a stab wound, or what it was."
Witness Callum O'Brien, who lives in a flat near the scene, told Mirror Online: "I didn’t see the attack and first I was aware was from multiple sirens outside.
"I can't see round the corner to where the attack took place but I have seen four people taken into ambulances. They were all taken on stretchers.
"One was very bloodied, the others not so much."
Prime Minister Boris Johnson wrote on Twitter: "Deeply saddened by the terrible incident in Glasgow, my thoughts are with all the victims and their families.
"Thank you to our brave emergency services who are responding."