Helsingin poliisi on Twitter: "Police has given a fine to a private person flying a #drone and violating no-fly zone in #Helsinki Kaivopuisto area. Please remember aviation restrictions in Uusimaa region during
![Helsinki, Finland - August 20, 2019: No drone zone Warning sign at fence wall, Prohibition sign to fly with drones on the net fence. No drone zone Stock Photo - Alamy Helsinki, Finland - August 20, 2019: No drone zone Warning sign at fence wall, Prohibition sign to fly with drones on the net fence. No drone zone Stock Photo - Alamy](https://c8.alamy.com/comp/2ARWKGP/helsinki-finland-august-20-2019-no-drone-zone-warning-sign-at-fence-wall-prohibition-sign-to-fly-with-drones-on-the-net-fence-no-drone-zone-2ARWKGP.jpg)
Helsinki, Finland - August 20, 2019: No drone zone Warning sign at fence wall, Prohibition sign to fly with drones on the net fence. No drone zone Stock Photo - Alamy
![Navigation assistance, air quality measurements and security risks – what to prepare for when city skies become populated by drones? | University of Helsinki Navigation assistance, air quality measurements and security risks – what to prepare for when city skies become populated by drones? | University of Helsinki](https://www.helsinki.fi/assets/drupal/s3fs-public/styles/16_10_m/public/migrated-news/body-images/104350-nodrone.jpg.webp?itok=KyLmaMIM)
Navigation assistance, air quality measurements and security risks – what to prepare for when city skies become populated by drones? | University of Helsinki
![Helsingin poliisi on Twitter: "Police has given a fine to a private person flying a #drone and violating no-fly zone in #Helsinki Kaivopuisto area. Please remember aviation restrictions in Uusimaa region during Helsingin poliisi on Twitter: "Police has given a fine to a private person flying a #drone and violating no-fly zone in #Helsinki Kaivopuisto area. Please remember aviation restrictions in Uusimaa region during](https://pbs.twimg.com/media/ECfWgkRXUAAm42b.jpg)
Helsingin poliisi on Twitter: "Police has given a fine to a private person flying a #drone and violating no-fly zone in #Helsinki Kaivopuisto area. Please remember aviation restrictions in Uusimaa region during
![In Airport Prohibition Sign To Fly With Drones On The Fence. No Drone Zone. No Drones All Remote-controlled Aircraft Are Prohibited Sign. Stock Photo, Picture And Royalty Free Image. Image 131226122. In Airport Prohibition Sign To Fly With Drones On The Fence. No Drone Zone. No Drones All Remote-controlled Aircraft Are Prohibited Sign. Stock Photo, Picture And Royalty Free Image. Image 131226122.](https://previews.123rf.com/images/frendev/frendev1910/frendev191000024/131226122-in-airport-prohibition-sign-to-fly-with-drones-on-the-fence-no-drone-zone-no-drones-all-remote-contr.jpg)