A Turkish military helicopter crashed into a house near the Afghan capital Friday, killing 12 Turkish soldiers on board and two girls on the ground, Turkish and Afghan officials said.

The helicopter, a Sikorsky, was on a mission for U.S.-led NATO forces when it went down near Kabul, the Turkish military said in a statement.

"Twelve of our military personnel on board were martyred," said the Turkish military.

There was no enemy activity in the area at the time of the crash, NATO said.

Turkish Prime Minister Recep Tayyip Erdogan said the helicopter was one of two that took off on Friday.

"Unfortunately, the one in front came down for an unknown reason," he said.

He said there were officers and noncommissioned officers on board.

Turkish Foreign Minister Ahmet Davutoglu told reporters it appeared that the helicopter crashed while trying to make an emergency landing and that the pilot tried to avoid houses.