Authorities have suggested that migratory bird strikes were the cause of last month's deadly plane crash in South Korea, according to multiple reports.

A small American Airlines jet collided with a Sikorsky H-60 military helicopter on approach to Reagan Washington National Airport and crashed in to the Potomac River on Wednesday night.

South Korea’s authorities investigating last month’s Jeju Air plane crash have submitted a preliminary accident report to the UN aviation agency and to the authorities of the United States, France and Thailand,

Pilots’ actions after the bird strike are an early focus of the investigation, according to people familiar with the probe.

The preliminary report was released by the Aviation and Railway Accident Investigation Board on Monday in South Korea.

Jeju Air Accident Prelim Report Says Ducks Ingested By Both Engines is published in Aviation Daily, an Aviation Week Intelligence Network (AWIN) Market Briefing and is included with your AWIN membership. Already a member of AWIN or subscribe to Aviation Daily through your company? Login with your existing email and password

The exact cause of the Jeju Air crash remains unclear, and the investigation is complicated because the black boxes stopped recording four minutes before impact.

The first report on last month’s Jeju Air crash in South Korea has confirmed traces of bird strikes in the plane’s engines, though officials haven’t determined the cause of the accident that killed all but two of the 181 people on board.

Bereaved family members of the Jeju Air plane crash honor the victims through a joint ancestral rite -- also known as charye -- at the memorial altar set up for the plane crash victims at Muan International Airport on Wednesday,

THREE passengers were injured when flames ripped through a South Korean commercial plane today, forcing the evacuation of all 176 people on board. An Air Busan plane burst into flames on the

STORY: South Korea has released the initial findings of a probe into the crash of a Jeju Air flight last month. But mysteries remain. All 175 passengers and four of six crew were killed in the incident,