Harrowing video shows man falling off Royal Caribbean cruise ship

The United States Coast Guard is searching for a cruise ship passenger who fell from a Royal Caribbean vessel early Friday morning.

Officials say crew members aboard the Oasis of the Seas witnessed an unidentified 35-year-old man jump off the ship and quickly alerted the Coast Guard.

The harrowing ordeal appears to have been caught on camera.  A passenger posted a video on YouTube that shows a man clinging to a life boat.

Several people are seen trying to pull the man back aboard when he suddenly loses his grip and falls in while horrified witnesses scream.