GAZA CITY, Gaza Strip – Israeli troops fired on Gazans surging toward Israel's border fence Friday, killing one person but leaving intact the fragile two-day-old cease-fire between Hamas and the Jewish state.

The truce, which calls for an end to Gaza rocket fire on Israel and Israeli airstrikes on Gaza, came after eight days of cross-border fighting, the bloodiest between Israel and Hamas in four years.

In a letter to the U.N. Security Council, the Palestinian U.N. observer Riyad Mansour called the situation in Gaza "extremely fragile" and said Israel's cease-fire violations and other illegal actions risk undermining the calm that was just restored.