A male nurse had to help the man previously identified as Jose Ivan down the gangplank of a police patrol boat after a 22-hour trip from the remote coral atoll where he washed ashore last week after apparently setting sail from Mexico on December 24, 2012.

About 1,000 curious onlookers crowded the dock for a glimpse of the long-haired fisherman, who smiled and waved briefly before he was whisked away for a medical check-up at Majuro Hospital.

The castaway told US ambassador Thomas Armbruster, who was acting as an interpreter for Marshall Islands authorities, that he was originally from El Salvador but had been living in Mexico for 15 years before his epic voyage.