A Lufthansa flight bound for Germany was forced to divert to Dulles International Airport in Virginia on Tuesday after experiencing “significant turbulence” during the flight, according to officials. Seven passengers were transported to local hospitals for treatment.

The plane, Flight 469 from Texas to Germany, was carrying 221 passengers and 14 crew members when it experienced the turbulence, according to a statement from the airline. The flight was diverted to Dulles Airport in Washington D.C. after the incident.

The seven passengers who were taken to hospitals were treated for minor injuries related to the turbulence. The other passengers were rebooked onto other flights.

The incident is the latest in a series of turbulence-related incidents on flights around the world. On Monday, a flight from Germany to Mauritius experienced turbulence, resulting in 20 people being injured.

In a statement, Lufthansa said it was cooperating with authorities to investigate the incident. It added that the safety of its passengers and crew was its top priority.

The cause of the turbulence is still under investigation.