Figures from Hollywood and US politics have paid tribute and expressed shock after acclaimed director Rob Reiner and his wife Michele were found dead in their Los Angeles home.

The film-maker, 78, and his wife, 68, were pronounced dead at a house in an upmarket neighbourhood of LA on Sunday. Their son Nick has been arrested.

Reiner is known for directing classic films in a variety of genres, including When Harry Met Sally, This is Spinal Tap, Stand By Me, Misery and A Few Good Men, as well as for championing liberal causes and Democratic politics.

Spinal Tap star Christopher Guest and his wife Jamie Lee Curtis said they were "numb", while former President Barack Obama said he and wife Michelle were "heartbroken".

Nick Reiner, 32, is in custody on $4m (£3m) bail after being arrested on Sunday, according to Los Angeles County Sheriff's Department records.

The Los Angeles Police Department has said it is investigating an "apparent homicide".

The Los Angeles Fire Department told the BBC they received a call at about 15:38 local time (23:38 GMT) for medical aid to a home in Brentwood, a neighbourhood that is home to many celebrities.