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 two flights, United Airlines Flight 1724 and Delta Air Lines Flight 1070 came too close to each other while arriving at the airport.

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

FAA officials say the two planes "landed safely after experiencing a loss of required separation" as they were headed to Sky Harbor.

The Federal Aviation Administration is once again looking into a close call at a major U.S. airport, after two passenger jets narrowly avoided a mid-air collision as they attempted to land in Phoenix.

The Federal Aviation Administration (FAA) said it is investigating a recent near-midair collision of flights that were approaching Phoenix Sky Harbor International Airport. A Delta Air Lines flight, as well as a United Airlines flight “landed safely” following “a loss of required separation” while both en route to the Phoenix airport,

Two passenger planes came dangerously close to each other near Phoenix Sky Harbor International Airport in the USA. The Federal Aviation Administration (FAA) is currently investigating the incident. The incident took place on Saturday,