1.   A U.N. helicopter was hit by ground fire in Croatia Wednesday and forced to make an emergency landing.

2.   Even as midnight approached, almost everybody remained nervous that the helicopters would be hit as soon as they landed.

3.   He pledged to step up the attack a few hours after his helicopter had been hit by fire from automatic weapons near Grozny.

4.   One Italian helicopter was hit by gunfire but not seriously damaged.

5.   Some accounts said the helicopter had been hit by a shoulder-launched grenade.

6.   The Israelis said one helicopter had been hit by the missiles, although other reports said two helicopters had been destroyed.

7.   A police helicopter was hit by groundfire Thursday, with no casualties, a police spokesman said.

8.   A Russian military helicopter was hit by automatic weapons fire from Chechnya and had to make an emergency landing, officials said Tuesday.

9.   A United Nations Puma helicopter was hit by small-arms fire near the central Bosnian town of Kakanj.

10.   Air Force Cmdr. Gen. Hector Velasco said gunfire hit the helicopter before it crashed but did not cause the accident.