Israel's ambassador to the U.S. called for "immediate and serious action" Friday after a United Nations report showed Iran has enough uranium to build a nuclear bomb. 

The White House also said the international community must work together to address Iran's uranium enrichment activities, calling the rogue nation's nuclear capabilities an "urgent problem." 

Israeli Ambassador Sallai Meridor, in an interview with FOXNews.com, said the report only emphasizes the threat Iran poses to the rest of the world. 

"It's an extremely worrisome report. ... It emphasizes that with every day passing, Iran is getting closer to a nuclear military capacity," he said. "The world must take immediate and serious action in order to prevent this nightmare from happening." 

He did not detail what those actions could entail, but said, for example, "Sanctions should be enhanced significantly." 

"The only option that is not on the table is to allow Iran to get military nuclear (capabilities)," Meridor said. He said such a scenario would release a "nuclear genie" that would "endanger every society in the world." 

"We are at a very, very serious and dangerous juncture to world peace," he told FOXNews.com. 

White House spokesman Robert Gibbs said the report, by the U.N.'s International Atomic Energy Agency, represented "another lost opportunity" for Iran as it continues to "renege" on its international obligations. 

Gibbs called Iran an "urgent problem that has to be addressed." He says "we can't delay addressing it." 

He said the international community can't have confidence in Iran's claims that the program is peaceful, and for producing energy, if it doesn't comply with the U.N. 

Meanwhile, both U.S. and Israeli officials said they were optimistic about the prospects for a peace process between Israel and the Palestinians, even though hard-liner Benjamin Netanyahu was just tapped to put together Israel's next ruling coalition. 

A coalition of right-wingers, if formed, could collide with the Obama administration and its ambitious plans for ending 60 years of conflict between Israel and the Palestinians. 

But U.S. State Department spokesman Gordon Duguid said Friday that the U.S. will work with the next Israeli government however it is composed. 

"We are always optimistic. We've been working on the peace process for a number of years," he said. "I think this shows determination by the United States to continue to work for a two-state solution in the Middle East and to help bring stability to the region." 

Meridor said the desire for peace is unchanged, though any agreement must not compromise the security of Israel. 

FOXNews.com's Judson Berger and The Associated Press contributed to this report.