The Associated Press reports: In the United States, travelers with U.S. passports and visas will be barred from traveling to Iran, Libya, Syria, Sudan, North Korea, Somalia, Syria and Yemen for at least 90 days starting in January.
The ban is expected to affect at least 1.3 million travelers, according to U.N. figures.
A family of four with an adult traveling with a U.K. passport will also be prohibited for at most 90 days, although this is not a full ban.
In addition to Iran and North Korea being on the list, travelers from Yemen, Iraq, Libya and Somalia are also barred from entering the United Kingdom, France, Germany, Italy, Norway, Switzerland and Turkey for 90 days.
A U.C.L.A. professor said the ban will create a ripple effect of disruption in the Middle East.
“It is hard to believe that we are in the position of imposing this ban after this week’s events in Paris, following the shooting in San Bernardino and following the recent terrorist attacks in Belgium and Turkey,” said Robert Naiman, a professor of international relations at Columbia University and a former deputy assistant secretary of state.
The Associated Press’ data showed that Saudi Arabia, Bahrain, Egypt, Egypt and the United Arab Emirates are among the countries affected by the ban.
Saudi Arabia is on the ban list because it is one of the world’s largest oil exporters.
While the countries on the top of the list are predominantly Sunni, the data shows that the vast majority of Iranians are Shiites, making up just about one-third of the population.
Some of the countries listed on the U.
A-F list have had ties to Iran for decades.
Saudi Aramco, one of Iran’s biggest oil companies, is one such company.
Iran has denied any role in the attacks.
Iranian President Hassan Rouhani said Sunday that Iran has not supported the terrorism and said the country has never used any terrorist organizations.
___Associated Press writer David Nakamura contributed to this report.