Counter-terrorism police have taken over the investigation into a stabbing at a Manchester school in which two pupils and a teacher were injured.
The attack took place on Tuesday at the Co-op Academy on Plant Hill Road in the Blackley area.
A 14-year-old girl was later arrested on suspicion of assault and detained under the Mental Health Act. Following an assessment she was then released to police custody, Greater Manchester Police said.
Counter Terrorism Policing North West said it had now “taken primacy for the investigation with the support of Greater Manchester Police”.
“Searches relating to the investigation remain ongoing and counter terrorism detectives are keeping an open mind to the motivation of the attack,” it added.
“At this time, it has not been declared as a terrorist incident.”