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Ukraine says Russian military vehicles crossed the border in southeastern Ukraine on Monday.

Correspondent Karoun Demirjian tells our Newscast unit that the accusations from the Ukrainian military come just as Russia announced it was sending another aid convoy into Ukraine.

Reporting from Moscow, Karoun filed this report:

"A Ukrainian ...

So much for water under the bridge: The British Embassy in the United States is apologizing for a tweet on Sunday in which it jokingly referred to the burning of the White House 200 years ago by the British.

Here's the original tweet:

Marie Harf, a deputy spokesperson for the ...

Luckily, a historic magnitude-6.0 earthquake in California over the weekend has not resulted in the loss of any human life.

The wine country, however, was deeply affected. While it's still too early to tell just how much the quake will cost Napa Valley, what's clear is that some wineries ...

After two weeks of sometimes violent protests, the family of Michael Brown finally took some time to mourn on Monday.

The funeral service for the unarmed 18-year-old killed by officer Darren Wilson was held in a St. Louis megachurch.

Brown's mother, Lesley McSpadden, and his father, Michael Brown Sr., entered ...

A group of 29 state attorneys general is asking the Food and Drug Administration to tighten their regulation of electronic cigarettes.

In a letter (PDF), the attorneys ask the FDA to prohibit flavored e-cigarettes and to restrict advertising and marketing in the same manner it does for traditional cigarettes.

The White House went on lockdown Thursday night and it was all for a pint-sized breach.

A toddler apparently got loose from his parents and made a run through the White House fence. If you've ever been to the White House, you know the Secret Service takes any breach very ...

Following a meeting with U.S. Secretary of State John Kerry, Afghanistan's two dueling presidential candidates have come to an agreement that aims to resolve a long-running election dispute.

Reuters says that:

"A joint declaration that both of the candidates signed, a copy of which was obtained by Reuters, did ...

(This post was last updated at 8:44 p.m. ET.)

The U.S. military conducted several strikes against Sunni extremist militants near Irbil in Iraq Friday, in what the White House calls a limited engagement.

"Military officials say unmanned aircraft struck a terrorist mortar position," NPR's Tamara Keith reports, "and then when ...

Just as the latest cease-fire expired, rockets flew into Israel from Gaza and Israel responded by ordering airstrikes in Gaza.

And just like that, a three-day negotiated peace came to an end. But NPR's Jackie Northam, who is reporting from Jerusalem, tells us it's still unclear if this renewed fighting ...

This post was updated at 9:45 p.m. ET.

President Obama has authorized targeted airstrikes against Islamic militants where needed and if militants advance toward American personnel in northern Iraq, he said Thursday night.

The president also said American planes have dropped aid and supplies to religious minorities in Iraq who ...

Two senior Khmer Rouge leaders were found guilty of crimes against humanity in Cambodia on Thursday.

As The New York Times explains, the verdict, handed down by a joint Cambodian and United Nations tribunal, is the first against top leaders of the genocidal Khmer Rouge regime.

Nuon Chea, the ...

This post was updated at 5:06 a.m. ET Friday:

The National Weather Service has downgraded Hurricane Iselle to a tropical storm. Residents are still warned to take precautions. Strong winds have already knocked out power to parts of Hawaii's Big Island.

This post was updated at 8:45 p.m. ET.

Retaliating for sanctions placed on it by the West, Russia has announced that it is banning the import of some food from the United States and its allies.

As The Associated Press reports, the list is broad and shows that Russian President Vladimir Putin has "no intention of bowing to ...

Russia is allowing former NSA contractor Edward Snowden to remain in the country for at least three more years.

Speaking to reporters in Moscow on Thursday, attorney Anatoly Kucherena said Snowden's application had been approved Aug. 1.

If you remember, Snowden has been in exile for a little more than ...

Russian President Vladimir Putin has ordered a ban on some food and agricultural imports from countries that have imposed sanctions on Russia.

In a statement, the Kremlin said the measures were intended to "protect Russia's security."

What is not clear is which food and agricultural imports will be banned. ...

Just as reports surfaced that Sprint, and its corporate parent SoftBank, were ending their bid to merge with T-Mobile, the company announced it was appointing a new CEO.

Sprint Chairman Masayoshi Son said Marcelo Claure, who runs Brightstar, a wireless company and subsidiary of SoftBank, would replace Dan Hesse, who ...

Tens of thousands of people are trapped on a mountaintop in northwest Iraq, with no water, no vegetation and few supplies.

The mountain, Mount Sinjar, is surrounded by militants from the brutal Islamic State — formerly known as ISIS — which took over Sinjar City and the surrounding area on ...

You remember what that lady tells you on the London subway system? "Mind the gap."

Well, one would-be train passenger in Perth, Australia, didn't and his whole leg got stuck between the train and platform.

Luckily, instead of this story turning into a tragic cautionary tale, it became a story ...

After nearly a month of brutal war, Gaza was calm for a second day on Wednesday.

And as that negotiated, three-day peace took hold, diplomacy stepped front and center.

In an interview with the BBC, U.S. Secretary of State John Kerry said both sides should take advantage of this ...

A day after a man dressed in an Afghan military uniform opened fire at service members from the NATO-led coalition, another insider attack is making news.

The Associated Press reports:

"An Afghan policeman turned his gun on his colleagues at a police checkpoint in the country's south, killing ...