1.   A mortar shell apparently fired by rebel Serbs exploded in a tree at U.N. headquarters in Sarajevo Sunday, showering shrapnel on the compound and adjacent U.S. embassy.

2.   A mortar shell apparently fired by rebel Serbs exploded in a tree at U.N. headquarters Sunday, showering shrapnel on the compound and adjacent U.S. embassy.

3.   A mortar shell apparently fired by Serbs hit U.N. headquarters Sunday, showering shrapnel on the compound and U.S. embassy next door.

4.   A mortar shell apparently fired by rebel Serbs explodes in a tree at U.N. headquarters Sunday, showering shrapnel on the compound and adjacent U.S. embassy.

5.   A mortar shell apparently fired by Serbs exploded in a tree Sunday at U.N. headquarters, showering shrapnel on the compound and U.S. embassy next door.

6.   But as they came out, the mortars detonated over their heads, showering shrapnel over the al-Qaida fighters.

7.   The blast showered shrapnel over several residential blocks.