India, Sept. 23 -- Denmark on Monday night reported that it spotted two to three large drones in its airspace, prompting a quick closure of Copenhagen Airport. As per Denmark police, the key airport has been closed after the sightings and all take offs have been cancelled until further notice.

Additionally, drones were also spotted over Norway and Sweden, minutes after Denmark reported two to three large drones over Copenhagen Airport. The origin of the drone sightings over Sweden and Denmark remain unconfirmed.

Amid the heavy police presence near Copenhagen Airport, FlightRadar reported that over 35 flights headed for Copenhagen Airport have been diverted to other airports.

Following the closure, majority of the flights have been dive...