The Daily Star's FREE newsletter is spectacular! Sign up today for the best stories straight to your inbox Sign up today! Thank you for subscribing See our privacy notice Invalid Email

Investigators discovered meat they could not identify in fast-food meals at restaurants across the country.

That sparked fears vermin meat has got into the food chain, possibly from rats, cats or dogs.

The discovery coincides with an invasion of giant mutant rats in Britain, with Birmingham one of the most plagued cities, a restaurant survey revealed.

Consumer watchdog organisation Which? found more than half the minced lamb dishes they tested in the city contained meat from animals other than sheep.

The probe by the consumer rights champions revealed the figure for London was almost a third, while overall seven take-outs had no lamb at all.

Five snacks from Britain’s two largest cities contained meat that could not be identified, raising fears that owners are cooking up rodents.

Last night the Food Standards Agency announced a programme of testing at curry shops, kebab houses and other takeaways.

And Which? said that it had unveiled a campaign called Stop Food Fraud, demanding stricter safety enforcement by town halls.

The revelation comes after a 2012 undercover operation at a food market in Dalston, east London, discovered that meat from African cane rats was being peddled by traders.

Richard Lloyd, executive director of Which?, said: “More than a year on from the horse meat scandal our research uncovers shocking evidence of food fraud.

“The Government, local authorities and the Food Standards Agency need to make tackling food fraud a priority.”