FAA Sets Up No-Fly Zone Over Boston Marathon Explosion Site

BOSTON  — The Federal Aviation has warned pilots that a no-fly zone has been put in place over the site of the Boston Marathon explosions.

The FAA said in a notice issued about an hour after the Monday afternoon explosions that a no-fly zone with a 3.5-mile radius has been created over 811 Boylston St. in Boston.

The zone is limited to flights under 3,000 feet in altitude, which is lower than most airliners would fly except when taking off or landing.

The notice said the no-fly zone is effective immediately and will remain in effect until further notice. Pilots planning flights were urged to call their local flight service station.

At least two people are dead and 23 were injured after two explosions. A third explosion took place about an hour later, set off intentionally by Boston Police because they believed they had a detected a potential bomb.

Two more explosive devices were found and were being dismantled, an intelligence official told the Associated Press.