Gadi Adelman also posted this on his Facebook page:
“URGENT: Still no confirmation on incursion, however, I said earlier today that with Israel now dropping leaflets warning Gaza residents to leave the border area that I felt “that Israel would probably invade Gaza at 4am local time”. Fox News has a reporter on the ground at the border, while he is on you can hear the small arms fire along with drone(s) and artillery. He also stated he saw IDF forces land on the beach. If this is not a ground incursion they are after a specific target that is on the border. I doubt that IDF forces would land on the ground for any target when it can be done from the Israeli side with artillery and from the air. This is probably the “softening up” of the area they plan to use to go in.”