TRANSPORT police are investigating after part of drone collided with the Flying Scotsman on the North Yorkshire Moors Railway.

The device was flying next to the steam train as it passed between Grosmont and Pickering on Sunday when its camera became dislodged after the device struck a tree.

British Transport Police has warned people to keep drones at least 50 metres away from trains or they could face prosecution.

Inspector Bob Moody of British Transport Police said: "While no damage was caused to the train, we would like to point out that the use of drones, or any other small unmanned aircrafts, within 50 metres of a train is prohibited and is an offence due to the fact that they can cause an obstruction and endanger the safety of the train.

“We have identified the person responsible and officers will be speaking to them in due course."

Insp Moody also called for people to stay clear of the railway and keep a safe distance from the tracks after trespassers forced the train to stop last month as it travelled to York from London's Kings Cross for the first time since it was refurbished.

 “There are lots of safe vantage points to view and take pictures of the train without the need to use drones, and we would urge people to use those, stay clear of the lines and not obstruct the train," he added.

"Not only is trespassing extremely dangerous and has previously resulted in the train’s journey being delayed, but it is an offence for which the offender risks being brought before the courts, a fine of £1,000 and a criminal record. We will be seeking to take action against trespassers on future journeys to ensure that these pass safely and free from disruption.”