US

It means people without close family or business relationships in the US could be denied visas and barred entry.

Who is affected?

"That (the) US arms a terrorist group is what causes instability," Khameini wrote on Twitter Monday. "Who created ISIS? The US!"

He added that while US President Donald Trump accuses Iran of supporting terrorists, "terrorism in this region has American roots."

The agreements included an $US110bn arms deal, which the White House described as the single biggest in US history.

Mr Trump and his wife Melania were greeted in the Saudi capital by King Salman on Saturday morning local time.

The eight-day trip comes as Mr Trump faces uproar at home following his sacking of FBI director James Comey.

It will also take in Israel, the Palestinian territories, Brussels, the Vatican, and Sicily.

US Secretary of State Rex Tillerson said the arms deal was aimed at countering the "malign" influence of Iran.

Two former officials knowledgeable of the situation confirmed to CNN that the main points of the Post story are accurate: The President shared classified information with the Russian foreign minister.

The President did not directly reveal the source of the information, but intelligence officials told CNN that there is concern that Russia will be able to figure out the highly sensitive source.

Margaret Lee flew from Tennessee to Amsterdam to meet someone she had been chatting with online.

The 16-year-old was arrested by Dutch police in the city of Zwolle over the weekend on suspicion of identity theft.

Police say she used her sister's passport to leave the country after hers was confiscated by her family.

Ms Lee ran away from her home in Clarksville on 1 April, according to the Montgomery County Sheriffs office.

She then flew to Amsterdam, via Iceland, by herself.

The helicopter carrier Izumo is escorting a US supply vessel within Japanese waters.

The US ship is heading to refuel the naval fleet in the region, including the Carl Vinson aircraft carrier group.

North Korea has threatened to sink the Carl Vinson and a US submarine, amid rising tensions in the region.

It also carried out a failed missile test on Sunday, despite repeated warnings from the US and others to stop its nuclear and missile activity.

Whether it's unfair Chinese trade practices, the North American Free Trade Agreement he's dubbed a "disaster" or Iran's destabilizing actions, Trump has kept up much of his bold campaign rhetoric.

"We call on (North Korea) to refrain from provocative, destabilizing actions and rhetoric, and to make the strategic choice to fulfill its international obligations and commitments and return to serious talks," Pentagon spokesman Gary Ross said. "North Korea's unlawful weapons programs represent a clear, grave threat to US national security."

The Korean-American lecturer had taught at Pyongyang University of Science and Technology (PUST) for several weeks prior to his arrest.

The investigation into Mr Kim was for matters "not connected in any way" to the university, PUST said.

Mr Kim was arrested just as he was about to leave Pyongyang. Authorities have not yet disclosed the reason.

According to South Korean news agency Yonhap, Mr Kim, who is in his late 50s, was involved in aid programmes and had been in North Korea to discuss relief activities.

US President Donald Trump once called the deal, which was agreed under his predecessor, "dumb".

The agreement allows for up to 1,250 asylum seekers to Australia to resettle in the US.

In return, Mr Turnbull's administration has agreed to resettle people from Guatemala, Honduras and El Salvador who have sought asylum in the US.

The deal would be honoured but not necessarily admired, visiting Vice-President Mike Pence said after talks with Australian PM Malcolm Turnbull.