Two drones were spotted flying over a German military base in Mechernich, just days after an explosive-carrying drone was discovered at Leipzig/Halle Airport.

Military police were deployed, and local authorities have opened an investigation into the latest drone sightings.

The incidents come amid growing concerns across Europe about unidentified drones flying over military and civilian facilities.

German officials have warned that the discovery of the explosive drone at the major cargo airport represents a serious new security threat, the AP has reported.

Western officials have increasingly accused Russia and its proxies of carrying out disruptive attacks across Europe, allegations Moscow has denied.