Matthew Perry's five Friends co-stars have released their first statement since his death - saying, 'we are a family.'

The actor best known for playing Chandler Bing in the hit sitcom between 1994 and 2004.

Friends cast Matthew Perry, Jennifer Aniston, David Schwimmer, Courtney Cox, Matt LeBlanc and Lisa Kudrow in 1995. Image: United Archives GmbH / Alamy Stock Photo

He died in his hot tub at home in LA on Saturday, at the age of 54.

In a joint statement, actors Jennifer Aniston, Courteney Cox, Matt LeBlanc, Lisa Kudrow and David Schwimmer, said:

"We are all so utterly devastated by the loss of Matthew. We were more than just cast mates. We are a family.

"There is so much to say, but right now we're going to take a moment to grieve and process this unfathomable loss.

"In time we will say more, as and when we are able.

"For now, our thoughts and our love are with Matty's family, his friends, and everyone who loved him around the world."

CBS, CW and Showtime 2015 Summer TCA Party.

It's been reported that tests to determine Matthew Perry's cause of death have come back inconclusive.

The Los Angeles Fire Department confirmed he had died before emergency crews arrived at his home.