The first tram-train to be used in the UK was derailed on its first day of full service after a crash with a lorry in Sheffield.
A spokesperson for Stagecoach Supertram, the operator, said: 'We can confirm that a collision took place this afternoon between a lorry and one of our vehicles shortly before 3.20pm on Staniforth Road.
'No-one has been seriously injured however a small number of people were treated at the scene for minor injuries.'
South Yorkshire Fire and Rescue Service said the crash on Staniforth Road happened shortly before 15:30 BST.
The fire service said that there were no reports of people being trapped in the tram-train but some passengers reported minor injuries.
The new tram-trains run on the rail network and tram tracks between Sheffield and Rotherham.
The project has been dogged with problems, with the scheme delayed by two years and costs spiralling from £15m to £75m.
The Government-funded project was approved in 2012 and is being run as a pilot to test the costs and 'operational issues' of the tram-train technology.
Last year, the project was labelled a failure by influential MPs, who suggested it may only provide lessons for how not to run other schemes.