A Ukrainian Boeing 737-800 carrying at least 170 people on Wednesday crashed shortly after takeoff from Tehran, killing everyone on board.
The circumstances of the crash are not fully known. The Iranian state news media cited technical problems on the plane, which was bound for Kyiv, Ukraine’s capital.
The disaster has the potential to add to the crisis at Boeing, which has been dealing with the fallout from two crashes involving a different jet. It also happened against the backdrop of the escalating tensions between the United States and Iran, which on Tuesday attacked two bases in Iraq that house American troops.