Oxford Bus Company and Thames Travel have boosted the number of ultra-low emission buses in their fleets, thanks to a £2m investment in green technology.

The Euro VI buses use the latest micro-hybrid technology to minimise environmental impact.

It works via energy recovered when braking being used to help power the bus.

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Nine Euro VI buses have been added into service, with three in the Oxford Bus Company fleet and six in the Thames Travel fleet.

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And in a boost to UK manufacturing all the vehicles were built by Wrightbus at Ballymena, Northern Ireland.

The bus company has previously retrofitted 71 buses to Euro VI technology.

The nine new buses will be used on services between Abingdon, Didcot, and Oxford.

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Phil Southall, managing director of Oxford Bus Company and Thames Travel, said: “This significant investment represents the next stage in our on-going strategy and commitment to introduce more sustainable modes of transport.

"We have always been committed to being at the forefront of the industry on environmental technology innovation and well over half of our buses are now powered by hybrid technology.”