Wax from melted candles and flowers, at the Canadian Embassy in memory of victims of the Ukrainian 737-800 plane that crashed on the outskirts of Tehran, during a national day of mourning in Kyiv, Ukraine, Thursday, Jan. 9, 2020. A Ukrainian passenger jet carrying 176 people has crashed just minutes after taking off from the Iranian capital's main airport, Wednesday, turning farmland on the outskirts of Tehran into fields of debris and killing all on board. (AP Photo/Efrem Lukatsky)

Candles and flower are placed at the Canadian Embassy in memory of victims of the Ukrainian 737-800 plane that crashed on the outskirts of Tehran, in Kyiv, Ukraine, Wednesday, Jan. 8, 2020. A 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/Efrem Lukatsky)