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Search & rescue professional joins effort to find missing Minn. man in Mexico

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A private citizen with professional search and rescue experience has stepped up to help locate a Minnesota man who went missing while bodysurfing earlier this week off the coast of Mexico, WCCO Radio reports.

Mark Stoneberg of Robbinsdale was bodysurfing near Puerto Vallarta on Tuesday when he disappeared around 5 p.m. He and his wife, Nancy Stoneberg, were in Mexico on a surfing trip in Sayulita, a small resort town of about 4,000 people.

Nancy Stoneberg told WCCO that the citizen, who she didn't identify, has worked with the National Oceanic and Atmosphere Administration, and his expertise could maybe help find where her husband could be.

She said the man -- who is completely volunteering his services -- has helped narrow the search area from a 300 miles to about 16 miles. She also noted how he encouraged her with the hopes that husband could still be alive.

Nancy Stoneberg described the man as "an angel" and that "he works all over the world and has contacts that you wouldn't imagine."

A Mexican Navy rescue team of divers is also helping out in the search efforts.

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