A guide to the travel restrictions imposed on the United States by the United Nations and other nations, including Saudi Arabia

Travel restrictions are the latest form of diplomacy by the Trump administration.

The restrictions are part of a broader effort to curb Iran’s growing influence in the Middle East and push back against Iran’s expansionist regional ambitions.

The new restrictions, announced by the White House late Friday, affect travelers from Iran, Libya, Somalia, Sudan, Syria and Yemen, as well as U.S. citizens and residents.

The list of countries is expected to grow in coming days, with additional restrictions imposed in the coming weeks.

The administration said the new restrictions will prohibit travelers from entering the United State or its territories, including the U.N. headquarters in New York City, and restrict travel to the U, U.K. and U.A.E. countries.

They also will restrict the movement of American citizens and permanent residents, who are eligible to enter the U to travel for the duration of the administration.

Among those affected are U. S. citizens who are U-visas, U-1 visas and temporary visas.

A list of additional restrictions was released Friday.

These include restrictions on travel by U. s citizens, permanent residents and students for the first four weeks of the Trump presidency.

These restrictions also include those for U. s citizens who travel to Iraq or Syria, and include those issued by the U-N.

and the European Union, among other countries.

The measures also include a ban on the entry of foreign nationals from Iran for at least 90 days, and a ban from entering Iran for 120 days and beyond.

The U. N. mission said the travel ban, which will remain in place for a year, will be lifted on Dec. 31.

The sanctions imposed on Iran were issued in response to the country’s ballistic missile test last week, which was deemed an “important milestone” by the international community.

The Trump administration has repeatedly voiced concerns about Iran’s ballistic missiles and ballistic missile technology, which has been described by U of S experts as a threat to regional security.

The missile tests were also seen by some as a warning to U. n. leaders to stop “trying to play politics” with Iran.

The White House did not say whether the U nancy will meet with Iranian President Hassan Rouhani to discuss the missile test, which U.n. diplomats said occurred before Trump was sworn in on Jan. 20.

The Associated Press reported that the Trump White House had planned to meet with Rouhani, but that Trump’s team said Thursday that the talks would be canceled.

More coverage:The Associated Press contributed to this report.