SAN JOSE - A small plane traveling to Costa Rica's capital of San Jose crashed on Monday afternoon, authorities said, killing five of the six passengers on board.

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Firefighters said they had located the wrecked aircraft and confirmed that most aboard had died. A sixth person, who the Red Cross identified as a 31-year-old woman, is in critical condition.

All of those aboard were from Costa Rica, according to the country's civil aviation authority.