By Amos Harel and Avi Issacharoff, Haaretz Correspondent and The Associated Press
Palestinian sources said militants seized an IDF position in the area.
IDF tanks and troops arrived at the scene and fired at the militants, who attacked the crossing with rocket-propelled grenades and automatic gun fire, local residents said.
It was not immediately clear whether any one was injured in the attack, although the IDF said it believes at least one of the gunmen was hurt.
Islamic Jihad claimed responsibility for the attack, saying it was carried out along with the Al-Aqsa Martyrs Brigades.
Abu Ahmed, a spokesman for Islamic Jihad, told local radios that four militants broke through the Gaza border fence and were clashing with soldiers.
"It is difficult to storm [the area]. But when they entered in a surprise, they confused the enemy," he said.
Palestinian security officials confirmed that four militants were clashing with IDF soldiers. One official said the attackers apparently used an armored jeep.
Abu Ahmed said the jeep collided with an Israeli armored vehicle and the Palestinian gunmen used assault rifles and rocket propelled grenades in the ensuing fight. Three of the militants returned to Gaza unharmed, and the fourth, an Islamic Jihad militant, was still in the area, he said.
[Remainder of this report is unrelated and was transmitted previously]