New Delhi, Oct. 5 -- Authorities shut down Munich Airport late Friday, the second closure in less than 24 hours after more suspected drone sightings, the airport said in a statement.

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

The airport suspended flight operations Friday night until further notice "as a precautionary measure due to unconfirmed sightings," the statement said.

Germany's air traffic control previously restricted flights at the airport shortly after 10 p.m. (2000 GMT) on Thursday and then halted them altogether, the airport said in a previous statement. Seventeen flights were unable to take off, affecting almost 3,000 passengers, while 15 arriving fli...