Article content Israel pummeled Gaza with air strikes and Palestinian militants launched rockets at Tel Aviv and other cities on Saturday, with no sign yet of an end to their worst escalation since 2014. A 12-story Gaza tower block housing the offices of the U.S.-based Associated Press and Qatar-based broadcaster Al Jazeera as well as other offices and apartments collapsed on Saturday after being struck by Israeli missiles. We apologize, but this video has failed to load. Try refreshing your browser, or Israeli air strikes topple Al Jazeera and Associated Press offices in Gaza as violence escalates Back to video