Israel Defense Forces (IDF) spokesperson Colonel Jonathan Conricus told CNN that the army will start "significant military operations" once civilians have left Gaza.
"It's really important that people in Gaza know we've been very, very generous with the time. We have given ample warning, more than 25 hours... I cannot stress more than enough to say now is the time for Gazans to leave. Take your belongings, go south. Preserve your life, and do not fall into the trap that Hamas is setting up for you," Conricus said.
Reports have been swirling around that Israel could use Joint Direct Attack Munition (JDAM) aerial bombs before invading Gaza on the ground.