A teacher and two pupils have been taken to hospital after they were injured in a knife attack at a school in Manchester.
A 14-year-old schoolgirl has been arrested on suspicion of section 18 assault after police were called to reports of multiple stabbings at the Co-op Academy on Plant Hill Road in Blackley at about 08:30 BST.
A boy and girl, both 14, and a 27-year-old male teacher have been taken to hospital and are in a stable condition, with their injuries not believed to be serious, Greater Manchester Police said.
Emergency services remain on scene and the force said officers were supporting the school, which has said it will remain closed until the end of the day.
The 14-year-old girl has injuries to the shoulder, a 14-year-old schoolboy has an injury to the ear, while the teacher was stabbed in the neck, police have said.
Ch Insp Jon Shilvock said staff at the school were quick to detain a girl, ensuring no further harm came to pupils or staff - before officers arrived shortly afterwards.
"We understand that this incident will have caused concern to pupils, staff and the wider school community," Shilvock said.
"The incident was swiftly and quickly dealt with by staff before officers attended to arrest the girl."
He said there is believed to be no wider threat to the public.
Peter Woods, the father of a year nine pupil, came to the school after getting a call about the incident.
He told BBC Radio Manchester: "You hear things on the news but it's always in other schools. You never think it will be in the school where your kid goes.
"For it to happen on your doorstep, it's terrifying."
Woods said he is concerned about sending his child back to class and wants to know what measures the school will have in place to prevent an incident like this from happening again.
Aureo Dombaxe said when he arrived at the school earlier to drop off his son he saw a "flood of police".
"We didn't initially know what had happened," he said. "When other parents informed me, it was heartbreaking."
He added: "You're always worried because you hear about knives at other schools - it is a worry when your kids go to the school."
Abel Lemos, who has a daughter in year seven, said as a parent "you get really afraid when you hear something serious has happened at the school".
He said: "We need to think more seriously about how to avoid this happening in the future.
"I worry about knives in school, it has become common on the news in the last few years."
Terry Christopher Coutet is father to two girls at the school and said he is "very afraid" following the incident.
"It is the first time it has happened in this school but it is very dangerous," he said.
"When you receive a call at work telling you to come and take your kids because there is trouble in the school, it is very very scary."
Ch Insp Shilvock added: "Officers will remain at the school and within the area to provide a visible presence and community reassurance."
Crowds that had gathered outside the gates have now cleared, with three police cars parked up on Plant Hill Road.
Co-op Academy and the Co-op Academy Trust, which is responsible for running the school, have been contacted for comment by the BBC.
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