Nicolas Cage accompanied his son in the ambulance when he was taken to hospital for a mental evaluation yesterday (07.06.11).

Weston Cage - Nicolas' son with former girlfriend Christina Fulton - was taken to a Beverly Hills medical facility after an alleged altercation with his fitness trainer at Hollywood eatery The Framer's Kitchen yesterday afternoon and his father went with him to ensure he was being looked after, according to gossip website TMZ.

It is unclear if the Hollywood star was with his son when the incident occurred or if he was called afterwards.

While details of what happened are still sketchy, it is believed Weston, 20, became upset when his trainer would not allow him to order a particular dish and witnesses claim he "freaked out" before police were called and took him to hospital.

However, it has also been reported that Weston had a fight with his wife NikkI Williams - who he married in New Orleans on April 24 - and was already upset when he arrived at the eatery.

He now may be subject to a 5150 psychiatric hold, which allows a qualified officer or clinician to involuntarily confine a person deemed to have a mental disorder that makes them a danger to himself or others.

A Los Angeles Police Department spokeswoman insisted no arrests were made and there is no criminal investigation underway.