4 killed after small plane crashes into busy Atlanta interstate

ATLANTA (AP) — Federal investigators say they'll have to reconstruct a plane that crashed into an Atlanta interstate to determine what caused the plane to go down.

Federal Aviation Administration spokesman Kathleen Bergen says a Piper PA-32 took off from DeKalb Peachtree Airport today and ran into trouble shortly after.

DeKalb Fire Capt. Eric Jackson says all four people on board died in the crash. Their identities haven't been released.

National Transportation Safety Board investigator Eric Alleyne said during a press conference that reconstructing the plane may take about two weeks, and a report on the cause of the crash may take between six months and a year.

Alleyne says it's unclear if the pilot made any emergency calls after taking off. The crash prompted major traffic backups throughout northeast Atlanta and nearby suburbs.