Gaza’s sole power plant shut down on Tuesday, leaving the territory’s two million residents with only around four hours of electricity a day after Israel cut off fuel supplies in response to incendiary balloons launched by Palestinian militants. Tensions have risen in recent weeks between Israel and Hamas, the militant group that has ruled Gaza since 2007. The balloons, launched across the frontier by Hamas-affiliated groups, have set farmland ablaze, prompting retaliatory strikes by Israel. Hamas is demanding, through Egyptian and Qatari mediators, that Israel take steps to further ease a crippling blockade it imposed when the militants seized control from rival Palestinian forces in 2007. Instead, Israel has tightened the blockade in response to the attacks, closing the main commercial crossing into the coastal territory and barring fishermen from taking to the sea. The closure of the power plant further reduces the supply of electricity in the territory, which was already experiencing frequent, widespread blackouts at the height of the scorching summer. Power lines running from Israel provide three to four hours of electricity a day for most households. “Many services are threatened with collapse if this crisis continues,” said Mohammed Thabet, a spokesman for Gaza’s power distribution company. He called on Israel to allow the resumption of fuel deliveries paid for by Qatar. The Health Ministry meanwhile warned of “dangerous consequences” for patients in the territory’s intensive care units. Hamas says Israel is not honouring previous understandings reached with the help of Egypt and Qatar, in which Israel would ease the blockade and allow for large-scale projects to help rescue the collapsing economy. On Monday, Egyptian mediators were in Gaza in an effort to reduce tensions and prevent another large-scale conflict between Israel and Hamas, which have fought three wars and several smaller battles since 2007. They departed without announcing any agreement.