GENEVA (Reuters) - An estimated 60,000 children face potential starvation in North Korea, where international sanctions are exacerbating the situation by slowing aid deliveries, the United Nations Children’s Fund (UNICEF) said on Tuesday.

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World powers have imposed growing sanctions on North Korea for its nuclear and ballistic missile programs. Last week the United States announced fresh sanctions on nine entities, 16 people and six North Korean ships it accused of helping the weapons programs.

Under United Nations Security Council resolutions, humanitarian supplies or operations are exempt from sanctions, Omar Abdi, UNICEF deputy executive director, said.

“But what happens is that of course the banks, the companies that provide goods or ship goods are very careful. They don’t want to take any risk of later on being associated (with) breaking the sanctions,” Abdi told a news briefing.

“That is what makes it more difficult for us to bring things. So it takes a little bit longer, especially in getting money into the country. But also in shipping goods to DPRK. There are not many shipping lines that operate in that area,” he said, referring to the Democratic People’s Republic of Korea.

Sanctions on fuel have been tightened, making it more scarce and expensive, Abdi added.

Reuters, citing three Western European intelligence sources, reported exclusively last week that North Korea shipped coal to Russia last year which was then delivered to South Korea and Japan in a likely violation of U.N. sanctions.

“We are projecting that at some point during the year 60,000 children will become severely malnourished. This is the malnutrition that potentially can lead to death. It’s protein and calorie malnutrition,” said Manuel Fontaine, director of UNICEF emergency programs worldwide.

“So the trend is worrying, it’s not getting any better.”

In all, 200,000 North Korean children suffer from acute malnutrition, including 60,000 with the most severe form that can be lethal, according to UNICEF.

UNICEF had projected 60,000 children would suffer severe acute malnutrition last year, and reached 39,000 of them with therapeutic feeding, spokesman Christophe Boulierac said.

“Diarrhoea related to poor sanitation and hygiene and acute malnutrition remains a leading cause of death among young children,” it said in Tuesday’s appeal to donors that gave no toll.

UNICEF is seeking $16.5 million this year to provide nutrition, health and water to North Koreans but faces “operational challenges” due to the tense political context and “unintended consequences” of sanctions, it said.

It cited “disruptions to banking channels, delays in clearing relief items at entry ports, difficulty securing suppliers and a 160 percent increase in fuel prices”.

“It’s a very close, and tightly monitored intervention which is purely humanitarian in its essence,” Fontaine said.

UNICEF is one of only a few aid agencies with access to the isolated country, which suffered famine in the mid-1990s that killed up to three million people.