Sadiq Khan, Mayor of London has said that his "thoughts are with the victims and their loved ones at this difficult time."
"Reports from today’s incident in Glasgow are truly awful," he said on Twitter.
"My thoughts are with the victims and their loved ones at this difficult time."
Meanwhile, the Home Office has said the reported stabbing is being investigated by police.
“We are aware of an incident at West George Street in Glasgow, which is currently being investigated by the police,” a Home Office spokesperson said.