John Travolta and wife Kelly Preston are in "unimaginable and unquantifiable" pain over the Friday death of 16-year-old son Jett.

Jett - who was vacationing with the Hairspray star and Preston in the Caribbean - suffered a seizure at the family's vacation home at the Old Bahama Bay Hotel on Grand Bahama Island, Travolta attorney Michael Ossi said.

Jett was taken to Rand Memorial Hospital in Freeport, where he was pronounced dead upon arrival. An autopsy will be performed at the hospital.