Kabul, Afghanistan (CNN) -- A helicopter belonging to NATO's International Security Assistance Force made a hard landing Monday along the perimeter of a coalition force camp, the force said.
Four passengers received minor injuries and the cause of the landing is under investigation, the force said.
Taliban spokesman Zabiullah Mujahid said his group shot down the helicopter in Laghman province, bordering Kabul province to the east.
Mujahid said all the passengers died.
Often, the two sides offer conflicting accounts of incidents involving coalition troops.
