Billy Crystal is to pay tribute to Robin Williams, his longtime friend, at next week's Emmy Awards.

The comedian and actor will honour Williams as part of the traditional "in memoriam" segment for industry members who died during the past year, Emmy executive producer Don Mischer said in a statement.

Mischer said the memorial segment during the August 25 ceremony will include a performance from Grammy-nominated singer-songwriter Sara Bareilles.

Williams was found dead in his Northern California home on August 11.

At last year's Emmys, the Good Will Hunting star honoured his friend and mentor Jonathan Winters during the tribute segment.

The Emmy Awards will be broadcast by NBC.