A helicopter assisting with the emergency response caused by tropical storm Nate fell on Monday morning in the banks of the Savegre river in the Central Pacific.
The report was confirmed by the Ministry of Public Security (MSP).
The three people aboard the helicopter with the registry identification TI-AZA, and which had been working the last few days in the humanitarian work, survived the crash.
It is believed the aircraft could have hit a canopy cable, a reason for its fall.
A Panamanian helicopter and crew aided in the rescue of the injured.