From [1] AP, with thanks to Teri:

JERUSALEM (AP) -- A local Hamas leader indicated Monday the militant group would not attack Israelis during the Palestinian presidential campaign and would consider a formal truce with Israel in the latest signs of hope for renewed peace efforts in the region.

However, just hours after Sheik Hassan Yousef spoke, two Hamas militants were killed while trying to attack an Israeli military outpost in Gaza, and another Hamas official said there was no such truce.