Solar powered street cleaning vehicles have recently begun to appear on the streets of Pyongyang, photos shared with NK News on Saturday show.

The emergence of the small and multi-colored vehicles, which feature a small roof that doubles as a solar panel, comes amid a broader push by the fuel-poor country to maximize the use of solar energy throughout the country.

“I only saw them for the first time yesterday, although they can of course have been around for longer,” said a source in Pyongyang, requesting anonymity due to the sensitivity of speaking to foreign media.

“All three of them