At least five people have been killed after a Mexican Navy plane crashed in foggy conditions near Galveston, Texas on Monday while transporting a child burns victim.

According to flight tracking website Flight Radar, the plane was last recorded at 15:01 local time (21:01 GMT) over Galveston Bay, near Scholes International Airport.

The aircraft was taking part in a medical mission on behalf of the Michou y Mau Foundation, which provides care to Mexican children with severe burns.

Mexico's Secretariat of the Navy said one person remains missing and two others were rescued alive.

Video footage shared with AP news agency showed the wreckage of the plane in the water, with witnesses and police officers seen entering the water to search the debris.

Local yacht captain, Sky Decker, stated he took two police officers to the site of the nearly submerged plane and found a badly injured woman trapped inside. I couldn't believe. She had maybe three inches of air gap to breathe in. There was jet fuel in there mixed with the water, fumes real bad. She was really fighting for her life, he described.

Search and rescue operations were coordinated with the US Coast Guard in challenging weather conditions. The Michou y Mau Foundation expressed their heartfelt condolences to the families affected by this tragedy.