"We can confirm that there was a fire between the conductor rail and the shoe gear beneath the 05.55 train from Weymouth to London Waterloo earlier this morning.
"None of the 20 passengers or staff on board were injured in the incident and the train crew quickly extinguished the small fire.
"Emergency services were called as a precaution. The problem with the shoe gear was at the front of the train and as a precaution two passengers were moved to the rear coach of the train where the other customers were seated.
"A bus replacement service was put in place between between Dorchester South and Weymouth while the train was moved and normal services were running by just after 9am.
"We would like to apologise to our passengers for any inconvenience caused."
More top news
A Hampshire-based scientist has taken what may be the first photograph of a Blue Whale spotted in UK waters.
A slice of the Queen and Prince Philip's wedding cake has sold for £500 at auction in Sussex, 68 years after the Royal couple got married
The sun shines on day one of the Great Dorset Steam Fair where 200,000 engine enthusiasts are expected over the next five days.