Drones are causing a problem for pilots taking off and landing at Denver International Airport.
There have been at least 17 close calls in Colorado so far this year, the Federal Aviation Administration reports. Ten of those were in DIA's airspace.
In June, a flight from Denver to Chicago spotted a drone at 6,500 feet - just two miles from the airport.
In July, a Delta Airlines flight crew saw a drone while on approach to DIA.
A drone could cause a disaster if sucked into the engine of a plane, but thankfully, no one has been hurt.
Recreational drone users can't fly within five miles of an airport and they can't fly higher than 400 feet - but officials say it has been happening anyway.
Wednesday, airport officials are meeting to discuss how they can stop this from happening to keep our flights safe.