Several people are believed to have been killed in an incident in Glasgow city centre, Sky News understands.
A police officer is among those who have been stabbed.
Armed police have sealed off West George Street and paramedics in hazmat suits were seen treating a person on a blood-stained pavement.
Eyewitnesses have told Sky News they saw people, bloodied, being taken on stretchers from the Park Inn hotel.
There are unconfirmed reports three people have been stabbed in the incident which is believed to have happened in the hotel.
Louisa, who was walking along West George Street, told Sky News: "I saw people being treated with blood on the ground.
"I saw people running out of the hotel with the police shouting 'put your hands up, put your hands up, come out'.