2 people died as a result of a midair collision of two small single-engine planes at Arizona Airport

At least two individuals were killed when two tiny single-engine aircraft crashed in midair Wednesday morning at an Arizona airfield, according to officials.

A Cessna 172S and a Lancair 360 MK II collided at Marana Regional Airport at 8:28 a.m. local time, according to preliminary National Transportation Safety Board data.

The aircraft "collided while upwind of runway 12," one of the airport's two runways. The Cessna landed “uneventfully” and the Lancair impacted terrain near the other runway and “a post-impact fire ensured,” the NTSB said.

According to the Federal Aviation Administration, each plane carried two passengers. Marana police have verified that two persons have died, while the situation of the other two remains unknown.

The FAA further stated that Marana Regional Airport is a "uncontrolled field," which means that there is no operational ATC control tower and pilots interact with other pilots in the airport's area via a Common Traffic Advisory Frequency. Pilots flying on an uncontrolled field must still obey FAA regulations.

The airport is now closed as an investigation proceeds.

The event comes after a recent run of aircraft disasters, beginning with the January 29 midair crash at Ronald Reagan Washington National Airport, which killed 67 people when a military helicopter and an American Airlines regional flight collided.

Since then, four other aviation incidents have brought attention to air safety, including the crash of a medevac plane in Philadelphia, a plane that crashed near Nome, Alaska, killing ten people, a private plane that ran off the runway in Scottsdale, killing the pilot on board, and, most recently, a Delta Air Lines regional jet that rolled over on the runway in Toronto.