Rail fares will rise by 3.2% next year, increasing costs for some commuters by more than £100.

Around 40% of fares will rise in January, including season tickets on most commuter routes and off-peak returns on long-distance journeys.

Fare prices are controlled by the UK Government, which sets them using the Retail Price Index measure of inflation.

Rail, Maritime and Transport union general secretary Mick Cash described the rise as a "kick in the teeth".

"With passengers already furious at the shocking level of service on Britain's rip-off privatised railways, today's news is just another kick in the teeth that will come back to haunt both the Tory Government and the train companies alike," he said.

"Chris Grayling's desperate attempt to try and make front-line rail workers pay for his incompetence and the train operators' greed has backfired on him just like everything else he touches."

Scottish secretary for transport Michael Matheson added: "The Scottish Government recognises that fares increases are unwelcome.

"In Scotland, average fares increases are lower than England and Wales where the UK Government applies an increase equivalent to RPI to all regulated fares.

"While passengers make a contribution towards the cost of running the railway through rail fares, in Scotland the majority is of rail services costs is met by government subsidy."