Israeli warplanes struck targets in the Gaza Strip early on Sunday.<br /><br />The Israel Defense Forces (IDF) said fighter jets and aircraft hit several targets, including a military compound in the north of the Strip and two naval vessels belonging to Hamas.<br /><br />A video showed fishing boats in the Gaza Strip which locals claimed were damaged by one of the Israeli strikes.<br /><br />There was no immediate word on casualties from the strikes, which came after militants in Gaza fired a mortar shell at the Eshkol region of southern Israel on Saturday night, according to the IDF.