Train fans have been urged to stay off the tracks if they want to see an iconic steam engine this weekend.

Eastern Daily Press: Tornado pulls the special Cathedral Express into Norwich Station. The train has a poppy on the front to commemorate Remembrance Day.Tornado pulls the special Cathedral Express into Norwich Station. The train has a poppy on the front to commemorate Remembrance Day. (Image: ARCHANT NORFOLK PHOTOGRAPHIC © 2010)

On the last outing of the iconic Tornado train earlier this month, spectators ended up blocking trains on the line, causing delays to several scheduled services.

The locomotive will be travelling from Kings Cross to Great Yarmouth on bank holiday Monday.

On its previous outing to mark the 150th anniversary of Walton railway station in Essex on August 12, train enthusiasts stood on the tracks to get the best photos, putting their lives at risk.

Several trains were delayed because people were on the tracks, causing disruption for hundreds of passengers.

Those who wish to take photographs should go to Great Yarmouth station where the transport police can facilitate this.

Stephen Webster from British Transport Police, said extra officers will be patrolling the line of route to deal with offenders.

He added: 'I hope that everyone enjoys the event however I would like to remind the public that trespassing on the railway is extremely dangerous and an offence.'

Network Rail's head of safety for Anglia, Richard Tew, urged people to keep off the tracks.

He said: 'We understand that people will be excited to see the train, but it is incredibly disappointing when people choose to risk their lives and the lives of others by going onto the tracks to get a better view.

'The railway is dangerous and trespassers endanger their own safety and that of others.'

Managing director of Greater Anglia, Jamie Burles, said: 'It is very difficult for our drivers and conductors when steam enthusiasts stray onto the track to get a better picture.

'People should remember that a driver cannot swerve out of the way of people on the track, so please enjoy this event, but safely, well away from the train track.'

The loco is the first brand new Peppercorn A1 Pacific to have been built this century, and is the project of the A1 Steam Locomotive Trust.

It will be her first Norfolk visit since 2012, when she was star attraction at the Sheringham Steam Gala.

Tornado will bring passengers to the coast from London, making use of a little-used stretch of track called the Wensum Curve to bypass Norwich.