"We are not calling for a new war, but we will not under any circumstance accept these incursions," he said in a prayer sermon in the Gaza Strip, where the worst cross-border violence since a devastating 2014 war entered a third day.
Haniyeh said that Israeli forces had intruded "150 to 199 metres (yards) on the pretext of searching for tunnels".
"We sent multiple messages that the resistance will not allow the Israeli occupation army to impose new rules within the borders of the Gaza Strip."
Israel launched new air raids in the Gaza Strip early today, saying it was a response to Palestinian mortar fire across the border.