The cast of Friends is to reunite for a one off special, more than 15 years since the show ended.

The episode will air on the HBO Max streaming service. A date is yet to be announced.

Jennifer Aniston, Courteney Cox, Lisa Kudrow, Matt LeBlanc, Matthew Perry and David Schwimmer will all appear.

Perry posted on Instagram: "It's happening" with a photo of the cast from the 1990s. The rest of the cast then started sharing the same post.