Hamas security and political officials have gone to underground tunnels in the fear that Israel may try to attack them, according to a report in Al-Quds Al-Arabi cited by Israel Radio.Hamas Prime Minister Ismail Haniyeh and senior official Mahmoud Zahar are now restricting their movement within the Gaza Strip, according to Hamas sources quoted in the report. According to that report, Hamas sources said that the organization is still interested in a ceasefire.