A rocket fired from the Gaza Strip exploded in southern Israel late last night, but caused no casualties having landed in a field, an Israeli police spokesman said.
This latest incident came two days after an Israeli air strike killed two Gaza militants. Islamic Jihad's armed wing, the Al-Quds Brigade, who said the victims were their men, threatened on Sunday to respond.
Gaza's Hamas rulers later issued a statement repeating a call for calm agreed with Islamic Jihad and other factions at a meeting a day earlier.
Last Friday, Netanyahu said Israel was ready to act with "great force" in response to rocket and mortar attacks. But Israel's leaders have appeared reluctant to be dragged into another bloody war with Hamas, especially as they lack international support for any new offensive on Gaza.
Reacting to persistent attacks from Gaza, Israel launched a three-week assault on the strip over New Year, 2009, in which some 1,400 Palestinians and 13 Israelis died.