Many of you have reported seeing dozens of police officers outside Bromley train stations today.

This is because of a pre-planned Met Police operation, and officers have been spotted by Orpington railway station and Bromley South station.

A spokesman for the police told News Shopper: "It is a Met operation using drug dogs and automatic number plate readers."

He added that once the operation was concluded we would be informed of any significant arrests.

Some posts on social media have suggested arrests have already been made.

One anonymous poster wrote: "Anyone know what is going on at Orpington station? Been told it has been swarmed by over 40 police officers and btp and that multiple people are being arrested."

A British Transport Police spokesman told News Shopper the operation was being managed by the Met.

Do you have any pictures of videos of the operation? Please send them to our reporter