Lothian Buses has revealed the first all-electric vehicles to join its fleet.

The six single-decker buses will carry passengers on the company's number one route between Clermiston and Easter Road in Edinburgh.

When a further five electric vehicles join the fleet in 2018, the service will become the city's first fully electric bus route.

Transport minister Humza Yousaf and Lothian Buses director Richard Hall viewed the new buses, which are manufactured by Wrightbus in Northern Ireland, on Thursday.

The new vehicles are the result of more than £2.7m of investment in zero-emission vehicles from the Scottish Government and Lothian Buses.

Each bus can accommodate up to 70 passengers and they are fitted with Wi-Fi, high back seats, USB charging points and LED spotlights.

They will be charged overnight and have a range of about 130 miles.

The number one service operates through Edinburgh's central air quality management area, where the council is trying to reducing pollution.

Mr Yousaf said: "I am delighted to be able to join Lothian in the launch of their new electric buses.

"It is fantastic to see operators, like Lothian, investing in their fleet in a way that supports both their passengers and the environment through new low carbon and electric vehicles.

"Lothian have benefited through the Scottish Green Bus Fund and I would encourage all operators to continue to consider the various grants that the Scottish Government and Transport Scotland can provide."

Mr Hall said Lothian Buses was taking steps to reduce emissions from its fleet.

He said: "These buses are not only fitted with zero-emission technology, they are also quieter and smoother, offering a better customer experience for the thousands of customers who travel with us every day.

"Electric bus technology is here and we need to embrace it and ensure that it is part of our future fleet and business planning strategies.

"It has a really important and exciting role alongside traditional diesel and hybrid technologies."