THE 'world's most famous train' will arrive in Somerset tomorrow after months of anticipation - but serious trespassing incidents mean we can't tell you when.

The Flying Scotsman is due to travel through the glorious countryside, travelling through Bristol down to Bishops Lydeard tomorrow (May 23).

But due to serious trespassing incidents, operators of the train have said they will no longer be releasing details of the timetable.

The train, which was originally built in Doncaster in 1923, passed through Gloucester to Bristol last Friday, but its journey was delayed by almost an hour because of people trespassing on the line near Cam and Dursley.

British Transport Police said: "We understand that people are excited, but the railway is a hazardous environment and trespassers endanger their safety and that of others.

"The disruption caused to trains as a result of the trespass over the weekend meant that many people were affected by the actions of the trespassers.

"We will monitor the situation as the Flying Scotsman continues its journey."

The charter train has been organised and promoted by Steam Dreams and tickets for the excursion have already sold out.

The charter is scheduled to go from Bishops Lydeard on a round trip via Bristol, Bath and Westbury.

However the Flying Scotsman will not be travelling to or from Minehead on these dates.

Charter passengers on the morning departure from Minehead, will be taken to Bishops Lydeard hauled by a WSR steam locomotive. 

A spokesman for West Somerset Railway said: "Over the past few weeks we have been running checks on the track between Bishops Lydeard and Minehead.

"The checks that need to be done to ensure that Flying Scotsman can run along the line, have unfortunately not yet been completed, so we are unable to allow the locomotive to come all the way down the line at this time.

"The checks needed will, however, be carried out before the Flying Scotsman's second visit to us in September

"Due to the nature of the visit, Bishops Lydeard station will only be accessible to fare-paying passengers on the day and views of the Flying Scotsman will be very limited.

"We ask any spectators to be respectful of local land owners and roads if trying to view the locomotive without a ticket."

The iconic train will then return to the West Somerset Railway in September to haul special trains on September 5,6 7, 9, 10, 11 and 12.

There will also be special trip for some of Somerset's luckiest school children during the visit in September.

They will be treated to a 40 mile round trip.

We'll be bringing you more as we get it tomorrow - in the meantime, if you are fortunate enough to snap the train (from a safe vantage point of course) or you are taking a ride on the train, don't forget to send us your videos and pictures.