Israel carried out air strikes in the Gaza Strip on Saturday after Palestinian militants there fired rockets into southern Israel.
The overnight air strikes targeted two training camps belonging to the Islamist group Hamas, causing no injuries, officials and witnesses said.
Late on Friday, Gaza militants had fired at least two rockets into Israel. One struck a town, damaging a bus but causing no injuries. A second was shot down by a missile defense system.
A Palestinian group that supports the group Islamic State claimed responsibility for one of the rockets fired at Israel.
The cross-border violence came after ongoing clashes in Jerusalem this week between Israeli police and Palestinian fighters at Temple Mount.