A Southwest Airlines flight from California took the 92-metre plunge shortly after take-off, injuring two flight attendants

Southwest Airline flight 1496 was responding to an on-board alert about another aircraft in its vicinity, the Federal Aviation Administration said. The FAA is investigating.

The crew responded to two air alerts that required the pilot to climb then descend, Southwest said in a statement. The flight departed from Hollywood Burbank Airport just before noon.

Passengers posted on social media that the plane took a dramatic drop soon after take-off. Data from the flight tracking site FlightAware shows it dropped roughly 300 feet (91.44 metres) in 36 seconds.

“Pilot said his collision warning went off & he needed to avoid plane coming at us,” comedian Jimmy Dore posted on social media.