Two teenagers have been arrested after a 15-year-old boy was stabbed at school.
Police were called to City of Birmingham School in Fentham Road, Erdington, just after 1.30pm on Thursday following reports a group of people had entered the school and stabbed a student.
The youngster was treated by the ambulance service and taken to hospital with serious injuries where he remains in a stable condition.
Two boys aged 16 and 17 were arrested a short time later on suspicion of attempted murder. Officers continue to search for other suspects.
Superintendent Mark Payne, from West Midlands Police CID, said: "This is a fast paced investigation and we are still conducting enquiries to establish the circumstances around today's incident.
"We are working closely with the school and if anyone has any information then I am urging them to speak to police or to call us as a matter of urgency."
Anyone with information is asked to call West Midlands Police on 101, or Crimestoppers anonymously on 0800 555 111.