A man and a teenager have been stabbed on a bus in the West Midlands. 

West Midlands Police have launched an investigation after two people were stabbed on a bus in Birmingham this afternoon (Wednesday, December 4). 

Officers said they were called at around 2.45pm to Colebrook Road in Sparkhill. 

A man, aged 32, and a 17-year-old boy were taken to hospital where they remain in a serious condition.

A spokesperson for West Midlands Police said: "Our investigation is in its very early stages and we’re appealing for anyone who has not yet spoken to us to come forward.

"The scene is being held. Warwick Road at the junction of Colebrook Road in Sparkhill remains closed.

"Anyone with any information about what happened can call us on 101 or via Live Chat quoting log 2852 of December 4."