Jewish pupils were prevented from leaving school on Friday when police responded to reports that a man was in possession of a firearm in the local area.
JFS emailed parents to say a man had been detained at Kingsbury Station, which is a short walk from the school.
“In conjunction with our security team, we made the decision to hold students until we were assured that the area was safe, which is now the case,” they said.
The Met said they had used a taser to detain the individual, who is now in custody.
