WASHINGTON (AFP) - Facebook announced a new feature over the weekend to make it easier for users to order meals without leaving the social network.

A new "order food" feature rolled out in the United States lets Facebook users order delivery or takeout from restaurant chains such as Papa John's and Panera, and on-demand services, including Delivery.com and DoorDash.

"People already go to Facebook to figure out what to eat by reading about nearby restaurants and seeing what their friends say about them. So we're making it even easier," read a blog post by Facebook vice-president Alex Himel.

"From local spots to national chains, Facebook connects you with old favourites and new discoveries in just a few taps. You can even check out what your friends have to say about a restaurant before you order your food."

Facebook has been testing this feature since last year and is rolling out the service in the US on its desktop, iOS and Android applications.