Amid Israel’s punishing air strikes, Iranians clogged roads and highways on Sunday to leave Tehran, according to reports. That came as fresh attacks targeted Iran’s energy infrastructure, including fuel supplies and a top natural gas field. Reduced electricity supplies could worsen an energy crisis that had already been hitting Iranians for months.

Israel’s sustained air campaign against Iran, including on Tehran, prompted residents of the capital to flee, clogging roads and highways.

There were traffic jams on roads leading out of the city, while others trying to flee were hailing taxis as they held suitcases, according to the New York Times.

One resident of Tehran who gave his name only as Alireza told the Washington Post that they left the capital Sunday for Iran’s northern Gilan province after a building near his home was hit by an air strike.

“We were lucky to leave very early,” he said. “Right after us the roads got really crowded.”