Transport for London (TfL) have launched an investigation into claims a London Underground worker was allegedly seen "watching porn" at Wembley Park station.

A passenger using the tube took an alleged photo of the man watching the x-rated material on his tablet on Wednesday (December 7), reports The Sun .

One witness told the newspaper: "On Wednesday I was at Wembley Park station when I saw the platform supervisor sitting in his cab intently viewing a tablet.

"On closer inspection I noticed it was porn, and he continued to watch it even when a train came into the platform".

Commenting on the allegations, TfL said they have launched an investigation.

A spokesman said: "Any conduct of this nature is totally unacceptable.

"An immediate investigation is underway and the appropriate action will be taken".

Keep up to date with the latest news in west London via the free getwestlondon app.

You can even set it to receive push notifications for all the breaking news in your area.

Available to download from the App Store or Google Play for Android now!