London, Aug 20 (IANS): A Indian British has pleaded guilty of taking explicit pictures of women in public places after police caught him in the act, a media report said.

Saleem Patel, 38, would regularly travel more than 200 km from his home in Hull city to take "upskirt" images of women using escalators on the London underground and railway stations, Hammersmith Magistrates Court was told on Wednesday, according to Hull Daily Mail.

He was caught when two off-duty police officers spotted him photographing a mother nursing her child in a park.

A search of his phone and computer found over 9,000 images he had secretly clicked, including pictures of women using the toilet and breastfeeding.

"There were photographs from toilets, images of females breastfeeding and images of from escalators where the defendant had filmed up the skirt of females," prosecutor Tom Gill said.

The pictures were taken between January 1, 2013 and April 16, 2015. Patel pleaded guilty to one count of outraging public decency.

Judge Susan Cooper adjourned his sentencing until September 9. The judge said the defendant could be facing jail.