Photo taken on Jan. 8, 2020 shows a piece of debris of a Boeing 737 Ukrainian passenger plane at the air crash site in Parand district, southern Tehran, Iran. All the passengers and crew members on board the Boeing 737 Ukrainian passenger plane that crashed near Tehran Imam Khomeini International Airport (IKA) on Wednesday morning are confirmed dead, official Islamic Republic News Agency (IRNA) reported. (Photo by Ahmad Halabisaz/Xinhua)