GAZA CITY (AFP/Reuters) - Three Palestinians were wounded early on Tuesday as Israel carried out three airstrikes on Hamas-run Gaza in response to rocket fire from the enclave, witnesses, medics and the army said. Two of the raids struck tunnels on the border between Gaza and Egypt and one hit east of Gaza City, witnesses and medics said. The three wounded were caught in the tunnels strikes, medics said. An Israeli army spokesman alleged that the airstrikes were carried out in response to two rockets that were fired from the territory late on Monday, without causing injuries or damage. He claimed the strike near Gaza City targeted a weapons manufacturing facility. It marked the latest violence along Gazas border, which has been mostly quiet since a war that Israel launched on Hamas in Gaza on December 27 in response to rocket fire ended with mutual ceasefires on January 18. The ceasefires have largely held despite violations by both sides. Since Israel and Egypt sealed Gaza off to all but basic goods following Hamas seizure of the territory in June 2007, a vast trade in goods through hundreds of tunnels has developed along the border. More than 130 Palestinians have died in cave-ins or been killed by Israeli operations targeting the network since the Hamas takeover of Gaza, medics say. Meanwhile, Palestinian President Mahmud Abbas said in an interview published Tuesday that US President Barack Obama is doing nothing right now to restart the stalled Israeli-Palestinian peace process. I hope hell take a more important role in the future, Abbas told the Argentine daily Clarin during a visit to Buenos Aires. The Palestinians are waiting for the United States to put pressure on Israel so it respects international law, so it takes up the road map towards peace, he said, according to publications Spanish translation. It can do two things: put pressure on the Israelis so they reject settlements, and put pressure so they accept withdrawing to the 1967 borders. On Monday, in talks with Abbas, Argentine President Cristina Kirchner also said she wanted the US to do more to restart Israeli-Palestinian negotiations. We cannot ignore the role the United States has, by virtue of their particular weight, in bringing Israel back to the negotiating table, she told a joint news conference. Peace talks have been on hold since the beginning of the year and remain stalled over Israels refusal to halt settlement construction, which the Palestinians have set as a precondition for negotiations. Obama and his administration have repeatedly called on the Israeli government to halt settlement construction in accordance with the road map peace plan. Meanwhile, Israeli Prime Minister Benjamin Netanyahu said on Tuesday an Israeli prisoner exchange with Hamas has not yet been agreed and might not happen, after a senior cabinet colleague predicted a breakthrough within weeks. There is still no deal, and I do not know if there will be one, Netanyahu, whose reticence on the state of the Egyptian- and German-mediated negotiations has helped stoke speculation about imminent progress, told reporters in Jerusalem. Leaders of Hamas were in Cairo to discuss the proposed swap of captive Israeli soldier Gilad Shalit for hundreds of jailed Palestinians. Officials close to the talks said on Monday that Israel had dropped its objections to some 160 prisoners that Hamas wants included on the release roster. But both sides have demurred at anticipation, disseminated mainly by Arab media, of an exchange being in place as soon as Fridays Muslim feast of Eidul Azha.