A boy suspected of stabbing two pupils at his former school was arrested at a mosque hours after the attack, police said. Detectives continued to question the 13-year-old after two boys aged 12 and 13 were wounded at Kingsbury High School in Brent, north-west London on Tuesday (February 10). The boys were taken to hospital with serious injuries, but were in a stable condition, according to police.

Police have not declared the attack a terrorist incident. In its latest update Scotland Yard said the suspect is a former pupil and a British national. Det Ch Supt Helen Flanagan, from Counter-Terrorism Policing London, said the suspect arrived at the school at around 12.30pm. She said the suspect entered a classroom on the first floor of the school and sprayed a substance not believed to have been noxious at a pupil as he walked through the door.

Ms Flanagan said the suspect stabbed the 13-year-old boy before running downstairs, attacking the second boy before fleeing the school.

Witnesses to the attack have claimed the attacker shouted "Allahu akbar", which means "Allah is most great" or "Allah is greater" in Arabic.

She said both victims were rushed to hospital for "urgent" care, adding: "Thankfully, both the victims are now in stable condition, and we have specialist family liaison officers assigned to support the victims and their families."

Armed police swept in and a manhunt was launched to find the suspect. A member of the public called the police at about 4.15pm over concerns about a child seen at a mosque in Brent.

Officers arrived and arrested the 13-year-old boy on suspicion of attempted murder within minutes of the call.

Ms Flanagan said: "I must add at this point that we do not believe the suspect has any particular connection to the mosque.

"At this stage, we think it may have been coincidental he ended up in that area and those at the mosque have been incredibly supportive of our investigation."

She said detectives were exploring a number of potential motives for the attack. Police searched two addresses linked to the suspect as well as the mosque.

Detectives have been collecting accounts from 30 to 40 witnesses, many of whom are children. Officers are also scouring CCTV from the school, searching devices and carrying out forensic enquiries.

Ms Flanagan said police are "mindful" of the fact the suspect is a child and would not release or confirm details about him which could risk his being identified.

She added: "The suspect remains in custody, and our focus is now to gather as much evidence as possible to help progress the investigation.

"I can also confirm that, at this stage, we are not looking for anyone else in connection with this incident. Based on what we know now it appears he was acting alone."