Halal food provided to nineteen other schools and nurseries in Westminster is being tested for traces of pork.
It comes after the council revealed that Halal chicken sausages at one school contained pig DNA but the supplier says they believe it was an isolated incident.
Ria Chatterjee reports.
More top news
Hundreds of passengers were ordered to leave the terminal building and flights grounded after passengers suffered difficulties breathing.
Council leaders today called on the government to provide extra money to help resettle the youngsters in the capital.
An eyewitness said: "It was very unnerving. It was just after 12pm and there were suddenly police vans and cars everywhere."