A Delta Air Lines pilot was taken into custody by federal agents shortly after landing at the San Francisco International Airport on Saturday, reportedly leaving both passengers and the plane’s lead pilot stunned.

A pilot for Delta Air Lines was arrested in the cockpit of a plane just moments after it landed at San Francisco International Airport on Saturday night, the authorities said, with the crew and passen...

She said she counted at least seven people in this group, with some wearing logos that said "HSI."