Rescue workers trekked overnight across a remote mountain forest carrying a woman who had survived a crash that killed five of the six people aboard.

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.

SAN JOSE, Costa Rica -- The sole survivor of a plane crash near Costa Rica’s capital, in which five other people died, is in serious condition in a hospital, the local Red Cross said on Tuesday. The 31-year-old woman was one of six people on board the small aircraft when it crashed southeast of San Jose.

The small plane went down in a mountainous area on the outskirts of the Costa Rican capital, San Jose. One of the six people on board is in a critical condition.

A small plane carrying six people has crashed southeast of Costa Rica’s capital, but the condition of those aboard was not immediately known