Gaza Conflict Intensifies on Day Four of OffensiveIntense Israeli airstrikes continued overnight throughout the Gaza Strip in response to an escalation in rocket attacks.A ball of fire is seen following an Israeli air strike on July 11, 2014 in Rafah, in the southern of Gaza Strip.SAID KHATIB / AFP - Getty ImagesPrintJuly 11, 2014, 4:50 PM UTC / Updated July 11, 2014, 4:01 PM UTC