Police investigating Ariana Grande doughnut incident

Pop star Ariana Grande is reportedly under police investigation after footage surfaced of her licking delicacies in a California doughnut shop.

The Problem hitmaker stunned fans when the film was posted online earlier this week (beg06Jul15) as it showed her stating "I hate America" while leaning onto the counter and mouthing doughnuts.

She later released a statement apologizing for what she said about America, insisting she was commenting on the country's obesity problems, and declared the doughnuts she licked were purchased by her friends.

The shop's owner disputes Grande's claim that the doughnuts were bought by her companions, and police in California have now confirmed they are investigating the video alongside public health officials amid claims the singer appears to "maliciously lick" the treats.