The US aviation regulator said Friday it has ordered stricter safety around Washington's Ronald Reagan airport after a devastating collision between a passenger jet and a military helicopter. The Federal Aviation Administration also closed part of a corridor near Ronald Reagan National Airport that the military helicopter was using when it collided with the Bombardier CRJ-700 jet.

After discovering a dangerous trend of near misses, the NTSB is recommending a ban on certain helicopter flights near Reagan National Airport in Washington, D.C. The urgent safety action comes in response to the deadly midair crash between a military chopper and a passenger plane over the Potomac River on Jan.

More than a month after an American Airlines plane and a Black Hawk helicopter collided near Reagan National Airport (DCA), killing 67 people, officials with the National Transportation Safety Board (NTSB) are calling for immediate changes to helicopter routes around DCA because they said it poses “an intolerable risk