The FAA says it is increasing supervision and support for staff at Reagan National Airport following a deadly mid-air collision in January. Meanwhile, the NTSB is still investigating the collision that killed 67 people.

A man, identified as an air traffic controller by government payroll records, was arrested after police were called to the DCA tower because of a fight.

A fight in the air traffic control tower at Reagan National Airport, or DCA, in the Washington, D.C., area led to an employee being arrested and charged with assault.