Plane crashes

Rescue workers carry the body of a victim of a Ukrainian plane crash in Shahedshahr, southwest of the capital Tehran, Iran, Wednesday, Jan. 8, 2020. A Ukrainian passenger jet carrying 176 people crashed on Wednesday, just minutes after taking off from the Iranian capital's main airport, turning farmland on the outskirts of Tehran into fields of flaming debris and killing all on board. (AP Photo/Ebrahim Noroozi)

FILE - In this Wednesday, Jan. 8, 2020 file photo, bodies of victims of a Ukrainian plane crash are collected by rescue team at the scene of the crash in Shahedshahr, southwest of the capital Tehran, Iran. Two U.S. officials said Thursday that it was “highly likely” that an Iranian anti-aircraft missile downed a Ukrainian jetliner late Tuesday, killing all 176 people on board. President Donald Trump is suggesting he believes Iran was responsible. (AP Photo/Ebrahim Noroozi, File)

Mourners place candles and photographs outside the Alberta Legislature Building in Edmonton, Alberta, Wednesday, Jan. 8, 2020, during a vigil for those killed after a Ukrainian passenger jet crashed, killing at least 63 Canadians, just minutes after taking off from Iran's capital. (Codie McLachlan/The Canadian Press via AP)

People look at a memorial at Borispil international airport outside in Kyiv, Ukraine, Thursday, Jan. 9, 2020, for the flight crew members of the Ukrainian 737-800 plane that crashed on the outskirts of Tehran. The crew of a Ukrainian jetliner that crashed in Iran, killing all 176 people on board, never made a radio call for help and was trying to turn back for the airport when the burning plane went down, an initial Iranian investigative report said Thursday. (AP Photo/Efrem Lukatsky)

United Nations personnel attend the scene where a South African air force plane crash-landed and caught fire at the airport in Goma, eastern Congo Thursday, Jan. 9, 2020. The C-130BZ military aircraft was transporting 59 passengers and eight crew members from the U.N mission when its left engine caught fire upon landing, according to the U.N. peacekeeping mission known as MONUSCO, and there were no casualties, authorities said. (AP Photo/Justin Kabumba)

President Donald Trump addresses the nation from the White House on the ballistic missile strike that Iran launched against Iraqi air bases housing U.S. troops, Wednesday, Jan. 8, 2020, in Washington, as Secretary of Defense Mark Esper, Chairman of the Joint Chiefs of Staff Gen. Mark Milley, Vice President Mike Pence, and Secretary of State Mike Pompeo, and others look on. (AP Photo/ Evan Vucci)

In this photo taken on Saturday, May 26, 2018, showing the actual Ukrainian Boeing 737-800 UR-PSR plane that crashed Wednesday Jan. 8, 2020, on the outskirts of Tehran, Iran, seen here as it waits to takeoff at Borispil international airport outside Kyiv, Ukraine. This Ukrainian airplane carrying 176 people crashed on Wednesday shortly after takeoff from Tehran's main airport, killing all onboard, Iranian state TV and officials in Ukraine said. (AP Photo/Oleg Belyakov)

A rescue worker searches the scene where an Ukrainian plane crashed in Shahedshahr, southwest of the capital Tehran, Iran, Wednesday, Jan. 8, 2020. A Ukrainian airplane carrying 176 people crashed on Wednesday shortly after takeoff from Tehran's main airport, killing all onboard. (AP Photo/Ebrahim Noroozi)

FILE - In this Dec. 26, 2018, file photo, members of the military wait outside facilities where President Donald Trump and first lady Melania Trump are visiting at Ain al-Asad air base, Iraq. Iran said Wednesday, Jan. 8, 2020, it has launched "tens" of surface-to-surface missiles at Iraq's Ain al-Asad air base housing U.S. troops over America’s killing of a top Iranian general. (AP Photo/Andrew Harnik, File)

FILE - In this Dec. 11, 2019, file photo, an United Airlines Boeing 737 Max airplane takes off in the rain at Renton Municipal Airport in Renton, Wash. Boeing said Tuesday, Jan, 7, 2020, it is recommending that pilots receive training in a flight simulator before the grounded 737 Max returns to flying, a reversal of the company's long-held position that computer-based training alone was adequate. The 737 Max has been grounded worldwide since last March after two crashes killed 346 people. (AP Photo/Ted S. Warren, File)