Fries with chocolate sauce set for McDonald's menu in Japan

McDonald's have revealed a new sweet treat for customers - fries with chocolate sauce.

Announcing the McChoco Potato, McDonald's said customers can now enjoy "an ideal combination of French fries drizzled with two types of chocolate sauce - chocolate with cacao flavour and white milk chocolate."

But the "salty and sweet" item will only be available at the chain's restaurants in Japan and for a limited-time.

"McDonald’s Japan continues to introduce surprising and unique menu items that exceed customers’ expectations, a press release on the chain's website said.