A pervert was caught on CCTV taking photos up a woman's skirt in a branch of Boots.

The incident happened in a branch of the high street chemist in the Tandem Centre, Colliers Wood, south London, police said.

Today Scotland Yard launched an appeal to trace the man seen on CCTV carrying out the voyeuristic act shortly after noon on November 5.

The force said the man was caught on CCTV pretending to browse the aisles before targeting the woman as she shopped.

The man, in his 20s, and wearing a grubby t-shirt, looks around before crouching down to hold his phone between the victim's legs as he takes a photo.

Moments later he returned, his victim apparently unaware, to crouch down while he brazenly snapped more voyeuristic pictures.

Despite being challenged by a security guard, who demanded he delete the images, he was allowed to leave the store.

Police said the suspect was described as a slim, white man, 6ft tall with short brown hair and blue eyes.

He was seen wearing a white T-shirt with a dark patch at the base and 'Adidas' written across his chest.

At the time of the incident he was said to be wearing navy blue tracksuit bottoms and brown shoes.

Contact Merton Police on 101, quoting image 195987, with any information.