A man and a boy have been charged with a number of offences following the incident.

Two people have been charged with violent disorder offences after a man was left seriously injured after being stabbed on a bus.

West Midlands Police said that Dello Alphaoumar and a 17-year-old-boy had been charged following the incident, which happened on Corporation Street on Birmingham on Tuesday evening.

The force said Alphaoumar, 21, had been charged with violent disorder, while the 17-year-old, who cannot be named for legal reasons, had been charged with violent disorder, threatening a person with a blade, and possession of a hammer.

The two were set to appear before magistrates in Birmingham on Thursday. No details are yet available of their appearance.

West Midlands Police has asked for anyone with any information to get in touch as soon as possible.

A spokesman for West Midlands Police said: “We’ve charged two people after a man was stabbed on a bus in Birmingham city centre.

“It's believed he had been chased onto the bus on Corporation Street by a group who started to attack him at around 10.30pm on Tuesday.

“He suffered serious injuries and was taken to hospital, where he remains today.

“We’ve now charged Dello Alphaoumar, aged 21, with violent disorder, and a boy aged 17 with violent disorder, threatening a person with a blade, and possession of a hammer.

“They were appearing before magistrates in Birmingham today.

“A boy aged 16 has been released on police bail while the investigation continues.

“We are also searching for a fourth suspect in connection with the investigation and want to hear from anyone who saw what happened or who has footage. They can get in touch via 101 or Live Chat on our website, quoting log 5780 of 13 October.

“We've set up a page where people who can send images or video, or any other information, relevant to the incident. https://mipp.police.uk/operation/20HQ26M14-PO1“