Police say their helicopter was shot at multiple times Sunday.
The Federal Aviation Administration issued a no-fly zone over Ferguson, Missouri, Tuesday at the request of the St. Louis County Police Department.
The St. Louis County Police Department told TIME it asked the FAA for the flight restriction after a police helicopter was fired upon “multiple times” during civil unrest Sunday. Ferguson, located just outside St. Louis, Missouri, erupted in street violence amid demonstrations sparked by the death of Michael Brown, a black teenager who was shot and killed by police on Saturday.
The FAA order restricts flights over the Ferguson area below 3,000 feet to first responders only, including medical and police helicopters. Private aircraft, including news helicopters, are prohibited from flying below 3,000 feet in a 3-mile radius around the town. The rule doesn’t apply to aircraft landing at or taking off from the nearby Lambert–St. Louis International Airport, a major commercial hub. The restriction is in place through August 18.