A Ukraine International Airlines jetliner crashed shortly after takeoff from Tehran on Wednesday, killing all 176 passengers and crew members on board. The Boeing Co. 737-800 single-aisle jet crashed after departing the Iranian capital’s Imam Khomeini International Airport en route to Kyiv, according to Iranian state television. The Boeing 737 aircraft likely crashed due to technical difficulties, state media quoted Ali Khahshani, a senior public relations official at the airport, as saying. The Boeing tweeted overnight, “We are aware of the media reports out of Iran and we are gathering more information.”