What we know about the Miami Amazon Boeing crash: Cause and number of deaths

An Amazon cargo plane barreled off a runway at Miami International Airport on Sunday , killing at least five people as it struck vehicles and burst into flames, authorities said.

The aircraft overran the runway around 2 p.m. after arriving from San Juan, Puerto Rico . Five people were killed, three critically injured and two others hospitalized with less severe injuries, Miami-Dade County officials told a news conference.

Miami-Dade Rescue Fire Chief Ray Jadallah said some people were trapped inside vehicles. The pilot and copilot were also trapped in the plane. Fire crews were still dealing with a fuel leak on the plane several hours after the crash, Jadallah said.

More than 60 Miami-Dade Fire Rescu e units responded to the crash, arriving to find the aircraft on fire as crews worked to extinguish the flames and assess patients.

The Prime Air plane came to rest beside a roadway near two semi-trucks, according to images from the scene. The aircraft appeared to be resting on its belly and was largely intact despite the fire.

The flight had been operated by 21 Air, a cargo carrier based in North Carolina. The 32-year-old Boeing 767 was originally built to carry passengers and flew for several airlines for more than two decades before being converted to a cargo plane in 2015, according to flight-tracking site Flightradar24.

About 250 flights were delayed at the airport late afternoon Sunday, according to FlightAware , a website that tracks flight disruptions.

The National Transportation Safety Board said it is sending a team to Miami led by Chairwoman Jennifer Homendy to investigate.

“We’re working closely with local authorities and officials to understand exactly what happened,” Amazon spokesperson Kelly Nantel said in a social media post. “Right now, our absolute priority is the safety, well-being, and care of everyone involved.”