Israeli aircraft launched air strikes in Gaza City early Sunday, one day after Palestinian gunmen crossed the Gaza border, believed to be the first such incident in a year. Palestinian security sources and media reports said there were three Israeli air strikes, but Israel Defense Forces would only confirm two. A Palestinian source said two air strikes occurred around midnight, the first targeting the home or office of Mohammed al-Hindi, a Jihad leader, in western Gaza City; the second striking a dairy warehouse in northern Gaza City. A third targeted a workshop in Gaza City's Sheikh Radwan neighborhood a bit later, the Palestinian source said. Also late Saturday, Israeli tanks conducted a limited incursion into northern Gaza, east of Beit Hanoun, Palestinian security sources said. IDF confirmed to CNN that a small number of Israel forces have been in the area since Friday to prevent Qassam rockets in the area. An IDF spokesman said there have been no incidents in the region.