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A pilot suffered minor injuries after a helicopter crash landed on the rooftop of a hospital in Boyle Heights Friday afternoon, authorities said.

The private aircraft was carrying a donated organ for Keck Hospital of USC when it landed on a helipad on the hospital’s rooftop just after 3 p.m., according to the Los Angeles Fire Department. Two other people were aboard but declined treatment after being medically evaluated, officials said.

Firefighters safely retrieved the donated organ and handed it over to hospital staff, LAFD said.

The aircraft was an AgustaWestland A109 medical helicopter, and it landed on the roof of the building’s fifth floor, said Emma Duncan, a spokeswoman for the Federal Aviation Administration.

When Sky5 was overhead around 3:30 p.m., the helicopter was tipped over on its side with some small pools of unknown fluids surrounding the wreckage. Its tail end was hanging over the side of the helipad with the helicopter lying not far from the building’s edge.

Officials said there was no fire and no major fluid leak.

At 4:13 p.m., firefighting crews were still on the scene while officials with the FAA and National Transportation Safety Board began to investigate, officials said.

Earlier, fire officials said two people were being treated in connection with the incident but they later clarified there was a total of three people aboard the aircraft.