The Federal Aviation Administration is restricting the path of some flights into Lambert-St. Louis International Airport amid the unrest in Ferguson following a grand jury’s decision not to indict the white police officer who fatally shot a black 18-year-old.

According to an advisory posted late Monday, planes were being rerouted out of an at least 3-mile area near Ferguson. The reason cited was “to provide a safe environment for law enforcement activities.” An FAA spokesman didn’t immediately return a call from The Associated Press.

The airport posted on Twitter that only inbound planes, not departures, are affected, though it wasn’t clear how many. The facility remains open.

For two weeks after the August shooting, the FAA restricted flights on 37 square miles of airspace, including for news helicopters.

(AP)