51.   The Bosnian Serbs are blocking U.N. convoys and holding peacekeepers hostage in retaliation for NATO air strikes last month and to prevent new air raids.

52.   The confrontation began after Israeli soldiers blocked a convoy headed by a Palestinian minister from using the road.

53.   The earthquake Monday jolted the town of Nahrin, setting off landslides that blocked relief convoys trying to reach earthquake survivors.

54.   The guerrillas blocked the convoy when it was passing through a difficult terrain in the remote mountainous state on Saturday.

55.   The guerrillas blocked the convoy when it was passing through difficult terrain in the remote mountainous state on Saturday.

56.   The Mexican army denied any attempt to block the convoy with the Zapatistas.

57.   The Security Council on Friday demanded an immediate cease-fire in northwestern Bosnia and condemned recent moves by militiamen to block convoys from bringing aid to hungry civilians.

58.   The wires were repaired, but then eight gunmen riding in a truck fitted with a heavy machine gun blocked the convoy as it entered a market.

59.   These refugees are particularly vulnerable because Serbs have frequently blocked aid convoys to this region for the last three years.

60.   The visiting Saudi Foreign Minister found his convoy blocked against a wall of fans.