The Federal Aviation Administration is investigating a narrowly missed midair collision between a United flight and a Delta flight at Phoenix Sky Harbor International Airport on Saturday, the agency said.

The United and Delta flights were less than a quarter of a mile apart horizontally before the warning devices went off, officials say.

Two planes nearly collide when trying to land at Phoenix airport. Source: ABC News A Philadelphia sports fan who went off on a misogynistic tirade against a female Green Bay Packers fan in a viral video won't be allowed to ever attend another Eagles home game.