Hamas leader Mahmoud Zahar said Tuesday that his movement was now capable of firing rockets at any city inside Israel any time it wants."There will be no security for the Zionists over and under the land," Zahar said in a speech in the Gaza Strip as rockets were being fired at Israel. "We are prepared to sacrifice our blood for the sake of Palestine and we advise the Zionist enemy not to play with us." Zahar said that Hamas and Islamic Jihad have reached agreement to "unify the weapons of resistance" against Israel. On Tuesday evening, Palestinian terrorists fired several rockets from the Gaza Strip toward southern Israel.The Iron Dome rocket defense system intercepted two rockets between Zikim and Ashkelon.A third projectile launched from Gaza landed in open territory in the Sha'ar Hanegev Regional Council.No injuries or damages were reported on the Israeli side.One rocket fired by terrorists in the Gaza Strip fell short of traversing the border with Israel and injured four Palestinians in the coastal enclave, AFP reported witnesses and medics as saying.According to the report, a child was among the wounded.The attack was the latest in a string of rocket launches from Gaza over the past week.Yaakov Lappin and Jpost.com Staff contributed to this report.