MUNICH — Germany’s Munich Airport reopened Saturday morning after authorities shut it down the night before for the second time in less than 24 hours after two additional drone sightings, officials said.

The closures are the latest after mysterious drone overflights in the airspace of European Union member countries.

The airport, one of Germany’s largest, reopened gradually beginning at 7 a.m. Saturday. Planes typically begin taking off at 5 a.m.

Federal police said two drone sightings were confirmed shortly before 11 p.m. Friday near the airport’s north and south runways, the agency said in a statement Saturday. The drones flew away before they could be identified.

Delays were expected to continue throughout Saturday, the airport said in a statement. At least 6,500 passengers were impacted by the overnight closure Friday into Saturday.

The previous closure, Thursday night into Friday, affected almost 3,000 passengers.

— The Associated Press