ANKARA/Sarpol-e Zahab - Iranian officials called off rescue operations , saying there was little chance of finding more survivors from the earthquake that shook parts of western Iran on Sunday, killing at least 530 people, state media said on Tuesday.

Survivors , many left homeless by the 7.3 magnitude earthquake that struck villages and towns in a mountainous area bordering Iraq, battled overnight temperatures just above freezing and faced another bleak day on Tuesday in need of food and water.

The death toll of 530, reported by state news agency IRNA, made it Iran’s deadliest earthquake in more than a decade. Thousands of people were injured and 30,000 homes damaged. Two whole villages were destroyed. The quake struck on the Iran-Iraq border, causing most of its damage in Iran despite an epicenter on the Iraq side of the frontier. Iraqi officials said seven people were killed and 325 injured in Iraq, all in the northern Kurdish provinces.

Iran’s President Hassan Rouhani arrived in the morning in the stricken area in Kermanshah province and promised that the government would “use all its power to resolve the problems in the shortest time”.

Thousands of people huddled in makeshift camps while many others chose to spend a second night in the open, despite low temperatures, because they feared more tremors after some 193 aftershocks, state television said.

A homeless young woman in Sarpol-e Zahab, one of the hardest-hit towns, told state TV that her family was exposed to the night cold because of lack of tents.

“We need help. We need everything. The authorities should speed up their help,” she said.

 “The rescue operations in Kermanshah province have ended,” Pir-Hossein Kolivand, head of Iran’s Emergency Medical Services, said. Iran’s top authority, Supreme Leader Ayatollah Ali Khamenei, offered his condolences on Monday to the victims and called on government agencies to do all they could to help.

Hospitals in nearby provinces took in many of the injured, state television said, airing footage of survivors waiting to be treated. Hundreds of critically injured were dispatched to hospitals in Tehran.

Iran’s Red Crescent said emergency shelter had been provided for thousands of homeless people, but a lack of water and electricity as well as blocked roads in some areas hindered aid supply efforts.

 “People in some villages are still in dire need of food, water and shelter,” said the governor of Qasr-e Shirin county in Kermanshah province, Faramarz Akbari.

The mayor of Ezgeleh, a city in Kermanshah, said 80 percent of its buildings had collapsed. Survivors desperately needed tents with elderly people and babies as young as one-year-old sleeping in the cold for two straight nights. In an interview with state television, Nazar Barani asked people to send fuel, milk, water and food as emergency services were too slow and providing limited provisions.

“People are hungry and thirsty,” a local man told ISNA news agency. “There is no electricity. Last night I cried when I saw children with no food or shelter.”

On Tuesday, Iran marked a day of mourning, with a black banner adorning the corner of images of the disaster broadcast by state television to the tune of “Sad Lisa” by British singer Yusuf Islam, formerly known as Cat Stevens. To show solidarity with the Kurdish-majority province hit by the quake , a state newspaper printed a headline in Kurdish, which read “Iran cries with Kermanshah”. Ali Daei, a legend of Iranian football and former national team coach, launched an initiative to gather food and basic supplies.

A Tehran cinema said it would donate half of its receipts to relief efforts, and the capital’s two football teams said they were sending hundreds of tents and blankets to affected areas. The Tabnak agency offered a little hope, with the report that a girl named Avna was born in one of the devastated region’s three hospitals.

Iran sees frequent seismic activity.

In 1990, a 7.4-magnitude quake in northern Iran killed 40,000 people, injured 300,000 and left half a million homeless, reducing dozens of towns and nearly 2,000 villages to rubble. Thirteen years later, a catastrophic quake flattened swathes of the ancient southeastern Iranian city of Bam, killing at least 31,000.

Iran has experienced at least two major quake disasters since - one in 2005 that killed more than 600 people and another in 2012 that left some 300 dead.