SARAJEVO, Bosnia-Herzegovina (AP) _ Soldiers serving in the NATO-led peace force in southern Bosnia came under fire twice over the weekend in separate incidents, NATO said Sunday.

No one was injured in the shooting incidents against peacekeepers _ the first in Bosnia in months.

The attacks occurred late Saturday and early Sunday, a few miles apart near the town of Jablanica, 30 miles south of Sarajevo.

In both occasions, one or more persons fired several shots in the direction of NATO troops and quickly withdrew into darkness. One armored vehicle was hit and NATO did not return fire, said Maj. Sheena Thomson, a spokeswoman for the alliance.

Thomson declined to identify the nationalities of the peacekeepers who were shot at, but the region is controlled mostly by French, German and Italian troops.

NATO was unaware of who carried out the attacks or why, Thomson said, adding that details were passed to the local authorities and U.N. police monitors who will investigate further. It's possible the perpetrator was the same in both incidents.

``This was an isolated incident, very rare,'' Thomson said. ``But we are obviously monitoring the situation very closely.''

A Western diplomat, speaking on condition of anonymity, said the incidents may be a result of rising tensions across the country ahead of September general elections.

Since NATO deployed its multinational peace force in Bosnia in 1995, 85 of its soldiers have died on duty. Most were victims of traffic accidents or land mine blasts.