At least five mortars struck the Erez Crossing Sunday morning, moderately wounding one soldier, and lightly wounding three others. MDA teams treated the victims at the scene before evacuating them to the Barzilai Hospital. A Hamas-affiliated radio station said Hamas operatives carried out Sunday's attack. The group said the attack was in retaliation to Israeli operations in the Gaza Strip and the West Bank. Earlier Sunday, Prime Minister Ehud Olmert said that Israel must continue to take military measures in order to defend its citizens. "Security forces will continue to act incessantly against agents of terror in Gaza and the West Bank," Olmert told ministers at the opening of the weekly cabinet meeting. "The activities will continue so long as they serve our security interests and the defense of Israeli citizens." In addition, Olmert emphasized that negotiations with Hamas were not on the table. "In light of what appears to be a lull in Kassam rocket fire, I want to make clear: We are not holding negotiations. We are not committing to changing our method of operations," Olmert said.