Officers were called to reports of a man making threats at a school in St Andrews Road yesterday (October 9) at 2.56pm.
The man was taken to hospital, and the incident was stood down.
In an update today (October 10), the Metropolitan Police has said it will be launching an investigation following the incident.
However, there are no other outstanding suspects, the force has said.
The Met said: “Your local safer neighbourhood teams will continue to patrol daily responding to local concerns.”
It is understood that multiple schools in the area took measures as a precaution to protect the children.
In one email sent by Royal Park Academy – one of the schools that took precautionary action – it claimed there was a “serious situation” after a “potential threat within the local area”.
It added: “The safety of our children and staff is always our number one priority.
“Out of an abundance of caution and in conjunction with police advice, we have enacted a partial lockdown.
“All children and staff are currently safe inside the building.
“We are working closely with the police who are investigating the matter and advising us on next steps.”
