All other halal products used in the council's production kitchens are supplied by a different company.

BBC: Leicester schools halal lamb burger contained pork

They could be hiding in Jabal-Al Halal -- a rugged mountain terrain in central Sinai.

CNN: STORY HIGHLIGHTS

Tests in those boroughs found meat in school meals did not contain either horsemeat or pork cross-contamination with halal food, said a spokeswoman.

BBC: Pork 'halal meat' scare: Meat pulled from schools' menus