Four Killed in Oklahoma City Plane Crash

Six First Responders Called to Scene

Four people were killed in the crash of a small airplane early Tuesday afternoon, authorities in Oklahoma City said.

Six Oklahoma City first responders were called to the scene of a reported plane crash in the city.

The crash happened at the Sundance Airport in Yukon, Oklahoma, at around 12:30 p.m. Tuesday, according to the Oklahoma City Fire Department.

The plane was a single-engine Cessna 172, according to the Federal Aviation Administration.

The victims' names have not been released.

The cause of the crash is under investigation.