IAF aircraft struck smuggling tunnels under the Gaza-Egypt border and a disused Hamas security base near the town of Khan Yunis early Wednesday, local Palestinian security officials said. The officials said the Hamas base had already been largely reduced to rubble in previous air strikes since the end of Operation Cast Lead on January 18, but this time, a mosque left standing inside the compound was destroyed. There were no reports of casualties. The IDF said aircraft hit seven tunnels and the Khan Yunis base in response to Palestinian terrorists firing 45 rockets and mortar shells since the cease-fire. Later Wednesday morning, a Kassam rocket fired from Gaza fell in an open area in southern Israel, police said. No casualties were reported.