Munich Airport open again after drone-enforced closure

A sign prohibiting drones is seen at Munich Airport (Enrique Kaczor/dpa via AP/PA)

Munich Airport reopened on Saturday after German authorities shut it down the night before for the second time in less than 24 hours after more suspected drone sightings.

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