Footage from Glasgow City Centre showed at least 10 police cars blocking West George Street, with armed police and sniffer dogs also on the scene.
One witness reported “lots of shouting and a huge number of paramedics in hazmat suits” had also rushed to the scene of a reported stabbing.
A traffic information bulletin issued by Glasgow City Council said: “Due to a serious police incident the following roads are currently closed until further notice.
LBC reporter Fraser Knight, who has been filming some of the videos of the accident, wrote on Twitter: “Reports of multiple stabbings in Glasgow City Centre and a potential major incident with upwards of 20 police vehicles, riot shields, armed officers and paramedics on West George Street.”
More to follow…