Denmark's integration minister has urged people to report pizza restaurants if they suspect they are employing illegal immigrants.

Inger Stoejberg said she "actually would encourage" Danes to contact authorities if they think something strange is going on, such as many employees "not speaking Danish at all".

She told the TV2 channel that it is impossible for police to check all the backrooms of pizza restaurants.

Her comments came after the channel recently reported an increase in the number of people suspected of living illegally in Denmark, jumping from 877 in 2015 to 1,348 last year.

Ms Stoejberg, considered an immigration hardliner, created a stir earlier for posting an online photo of herself smiling and holding a cake to mark the 50th measure tightening immigration laws.

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