Hamas Gaza leader Ismail Haniyeh on Saturday accused Israel and the Palestinian Authority of complicity in the deaths of three children killed in a fire that burned down their home, which was apparently started by candles used to light the residence.

Haniyeh said the Israeli blockade on Gaza, and the high price charged by the PA for diesel supplies to the Strip, cause power shortages which indirectly led to the children’s death.

“Israel’s plane are scorching the earth and Palestinian homes, and those who conspire (to continue) the siege on Gaza are burning Palestinian children,” Haniyeh said at the children’s funerals, Ynet reported.

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Officials from both the Hamas and Islamic Jihad terror groups hold Mahmoud Abbas and the PA responsible for the deaths, Israel’s Channel 2 said.

Israel maintains a security blockade on Gaza to prevent Hamas, which openly seeks Israel’s destruction, from importing weaponry and materials to build attack tunnels.

On Friday Haniyeh said his terror group was not seeking war with Israel but would not tolerate Israeli troops entering the Palestinian territory.

“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, on the fourth day of tit-for-tat exchanges of fire between Hamas and Israel around the coastal enclave.

Haniyeh said that Israeli forces had intruded “150 to 199 meters (165 to 220 yards) on the pretext of searching for tunnels.”

Israel on Thursday announced it had located a cross-border tunnel extending into Israel and built by the terror group for the second time in recent weeks.

“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,” Haniyeh said.

He said the movement would not accept the “so-called buffer zone,” referring to a 100-meter (328-feet) wide strip along the border but inside Gazan territory where the Israeli army has said it reserves the right to operate.

Meanwhile, Palestinian and Egyptian sources told The Times of Israel that IDF troops had withdrawn from the Strip. On Thursday, IDF forces were operating in two areas inside the enclave — around Beit Hanoun in the northern Strip and Rafah in the south, according to the sources.

An Egyptian mediator conveyed messages between Israel and Hamas designed to prevent an escalation in hostilities, the sources said. Israel emphasized that it was only working to locate tunnels, and would remove its forces once its operations were complete.

Still, the Coordinator of Government Activities in the Territories, Major General Yoav (Poly) Mordechai, stressed that despite reports to the contrary, the IDF would continue its tunnel-detection operations.

“The army intends to maintain its activities against Hamas as it continues to breach Israeli sovereignty and build tunnels,” he said.

Since Tuesday, IDF soldiers working to unearth cross-border underground passages from the Gaza Strip have been targeted by Hamas mortar fire a dozen times, according to the army. The Israeli Air Force has carried out four raids on Hamas targets in retaliation, most recently on Friday morning.

Shells were fired from the Gaza Strip at Israeli soldiers on Friday, causing no injuries. The soldiers were operating near the southern edge of the coastal enclave, according to the Israel Defense Forces. Israeli jets subsequently targeted a Hamas site in southern Gaza, according to the army. There were no reports of casualties.

“The repeated attacks against the IDF activities to locate and destroy cross-border tunnels will not be tolerated. Hamas’s diabolical plan to infiltrate into Israeli communities must be stopped. The IDF has the obligation and a duty to safeguard the people in southern Israel and the sovereignty of our borders, we will continue to do so,” said IDF spokesman Peter Lerner in a statement.

Prime Minister Benjamin Netanyahu on Friday morning convened the high-level security cabinet to discuss the escalation in violence.

No troops have thus far been injured in the attacks, although some engineering vehicles have been damaged, according to the army.

On Thursday, a Palestinian woman was killed when Israeli tank shells hit her home east of Khan Younis in the southern Gaza Strip, according to the southern city’s Nasser Hospital. The woman was identified by the hospital as Zeina al-Amour, 54.

Palestinian media also reported that a number of people were injured in a series of Israeli airstrikes in the area of Rafah on Thursday, also in the southern Gaza Strip. The IAF confirmed its aircraft hit four military posts belonging to Hamas, the de facto rulers of the Palestinian enclave, Thursday afternoon.

Earlier Thursday, the IDF revealed that it had discovered another Hamas attack tunnel burrowing into Israeli territory from the Gaza Strip. It was the second such tunnel discovered in a month. The second tunnel, which is slated to be destroyed in the coming days, is 28 meters (90 feet) deep and was located just a few kilometers from the location of another tunnel discovered and destroyed last month, the army said.

Despite the increased tension along the border with Gaza in recent weeks, the years since the 2014 conflict, known as Operation Protective Edge, have been the quietest in over a decade, in terms of rocket fire and attacks coming from the coastal enclave.

Since the discovery of the first attack tunnel last month, the IDF and the Israeli government have stressed there are no indications of an imminent large-scale conflict with the Hamas terrorist organization.

Judah Ari Gross, Avi Issacharoff and AFP contributed to this report.