A Ukrainian airliner with 176 passengers and crew on board crashed near Tehran's Imam Khomeini International Airport early on Wednesday. Iran's state television said all those on board, majority of them Iranians, were killed.
According to the Iranian media, the Boeing 737-800 jet crashed near Parand, a suburb southwest of capital Tehran shortly after the takeoff.
The plane had taken off from Imam Khomeini International Airport when a fire struck one of its engines, said Qassem Biniaz, a spokesman for Iran's Road and Transportation Ministry.
The pilot of the aircraft then lost control of the plane, sending it crashing into the ground, Biniaz said, according to the state-run IRNA news agency.
Images posted on social media also indicated that there were no survivors. Earlier reports had said there were 180 people on board.
The journalists of The Associated Press news agency who visited the site saw the debris scattered across farmlands. The dead lay among shattered pieces of the aircraft. Rescuers in masks shouted over the noise of hovering helicopters as they worked.