31.   Gunmen opened fire on the American Center in Calcutta, killing four policemen.

32.   Gunmen opened fire in broad daylight as the column moved through a heavily guarded highway north of the center, Russian NTV television reported.

33.   Gunmen opened fire a few miles from here on an Israeli car in the West Bank, killing one Israeli and wounding another.

34.   Gunmen opened fire from a building on the outskirts of Rafah, hitting the officer in the head.

35.   He was shot in the head when the gunmen opened fire.

36.   Hours later, Palestinian gunmen opened fire in downtown Jerusalem.

37.   In a clear sign of the tensions, a gunman opened fire Wednesday on the election headquarters of a moderate party in Tehran.

38.   In a separate attack Sunday, Palestinian gunmen opened fire along a road to two settlements in the northern Gaza Strip in the morning, killing another Israeli.

39.   In a clear sign of the tensions, a gunman opened fire on Wednesday on the election headquarters of a moderate party in Tehran.

40.   In all three cases, it was still unclear Sunday why the gunmen opened fire.