NBC News' chief foreign correspondent Richard Engel has taken a picture of the media building in Gaza City that is on fire after being struck by a missile.
He says he has seen injured people being taken away.
Today's bombing in Tel Aviv is reminiscent of six years ago and could mark a serious escalation in the conflict.
A truce in Gaza suits all sides but none of the groups seem interested in a long-lasting solution.
A complex system of air defences has been instrumental in protecting Israel's population from incoming rockets.