Firefighters investigate an early morning fire at the Mariner's Cove Hotel in Point Pleasant Beach, N.J. on Friday, March 21, 2014. An early morning fire killed three people at the Jersey shore motel whose residents included Superstorm Sandy victims who were staying there because their homes remain uninhabitable nearly a year and a half after the storm, officials said. (AP Photo/David Gard)

At least three people have died in a fire that destroyed a Jersey Shore motel early today.

Eight others were hurt and 10 people are unaccounted for.

Fire officials say they don't know what caused the early-morning fire at the Mariner's Cove Motor Inn in Point Pleasant Beach.

A town resident says the two-story motel went up in flames "very, very fast."

The motel housed some victims of superstorm Sandy.