MOSCOW (Sputnik) — The restrictions cover a radius of 2.5 nautical miles, according to the statement.
"No pilots may operate an aircraft in the areas covered by this NOTAM [Notice to Airmen]<…> Only relief aircraft operations under direction of Dallas Police Department are authorized in the airspace," FAA said in a statement on its website.
At least five officers are dead and several remain seriously injured per reports by the Dallas Police Association.
According to police there were at least four people involved in the attack, all of whom were shooting with rifles from different points in a triangle arrangement to expand the kill box.
All suspected perpetrators were either detained or 'neutralized', according to law enforcement.