Thousands of Israeli marchers on Monday called on Defense Minister Ehud Barak to meet Hamas' demands for prisoners' release, in hopes of gaining in return the release of abducted Israeli soldier Gilad Shalit. The marchers massed in front of Barak's Tel Aviv home Monday morning and called on him to make greater efforts to gain Shalit's freedom. They later held a rally in central Tel Aviv attended by some 14,000 protesters, according to police estimates. After a midday rally in downtown Tel Aviv, the marchers are due to head towards the Gaza border to visit the site where Shalit was kidnapped. The Israel Philharmonic and a noted performer will hold a concert in support of Shalit, alongside the Gaza security fence. Hamas is demanding Israel to free over 1,000 Palestinian prisoners in exchange for the Israeli soldier. Israeli Prime Minister Benjamin Netanyahu has said that while Israel is willing to pay a 'heavy price,' the Jewish State will not pay 'any price' for Shalit's freedom. 'As long as the Israeli government is reluctant to fulfill our demands, the demands are getting more,' head of Damascus-based Hamas politburo member Khaled Mashaal said in the Syrian capital. The marchers, led by Shalit's parents and other family members, are on the ninth and final day of a cross-country trek to publicize their goal. Over 10,000 supporters walked along segments of the route, according to police estimates, blocking traffic along major thoroughfares across Israel. The Shalit family plans to continue the march until they reach Netanyahu's residence in Jerusalem on Sunday, organizer Shmuel Algrabli told Xinhua. There, they intend to encamp, until, according to the family, Shalit is freed. In June, 2006, Gaza militant group al-Qassam Brigades gunmen entered Israeli territory through a tunnel where Shalit was on guard duty in an open-hatched tank and captured him. 