Protests in Iran

People protest in Tehran, Iran, Dec. 30, 2017, in this picture obtained from social media.

Protesters in Tehran's Valiasr avenue overturned a police car.

Opponents of Iranian President Hassan Rouhani hold a protest outside the Iranian embassy in west London, Dec. 31, 2017.

In this photo taken by an individual not employed by the Associated Press and obtained by the AP outside Iran, university students attend a protest inside Tehran University while a smoke grenade is thrown by anti-riot Iranian police, in Tehran, Dec. 30, 2017.

A university student attends a protest inside Tehran University while a smoke grenade is thrown by anti-riot Iranian police, in Tehran, Iran, Dec. 30, 2017. A wave of spontaneous protests over Iran's weak economy swept into Tehran Saturday, with college students and others chanting against the government just hours after hard-liners held their own rally in support of the clerical establishment.

Iranian students run for cover from tear gas at the University of Tehran during a demonstration driven by anger over economic problems, in the capital Tehran, Iran, Dec. 30, 2017.

Police vehicles are seen during a protest near the university of Tehran, Iran, Dec. 30, 2017, in this picture obtained from social media.

Iranian students scuffle with police at the University of Tehran during a demonstration driven by anger over economic problems, in the capital Tehran, Iran, Dec. 30, 2017.

People protest near the University of Tehran, Iran, Dec. 30, 2017, in this photo obtained from social media.

People protest in Tehran, Iran, Dec. 30, 2017, in in this picture obtained from social media.

People protest in Tehran, Iran Dec. 30, 2017, in this still image from a video obtained by Reuters.

In this Saturday, Dec. 30, 2017 file photo taken by an individual not employed by the Associated Press and obtained by the AP outside Iran, university students attend a protest inside Tehran University while anti-riot Iranian police prevent them to join other protesters, in Tehran, Iran.

Opponents of Iranian President Hassan Rouhani hold a protest outside the Iranian embassy in west London, Dec. 31, 2017.

Opponents of Iranian President Hassan Rouhani hold a protest outside the Iranian embassy in west London, Dec. 31, 2017.

This photo taken by an individual not employed by the Associated Press and obtained by the AP outside Iran, demonstrators attend a protest over Iran's weak economy, in Tehran, Iran, Dec. 30, 2017.

In this photo taken by an individual not employed by the Associated Press and obtained by the AP outside of Iran, people are affected by tear gas fired by anti-riot Iranian police to disperse demonstrators in a protest over Iran's weak economy, in Tehran, Iran, Dec. 30, 2017.

Iranians chant slogans as they march in support of the government near the Imam Khomeini grand mosque in the capital Tehran, Iran, Dec. 30, 2017.

Iranians gather in support of the government at the Imam Khomeini grand mosque in the capital Tehran, Iran, Dec. 30, 2017.

Iranians chant slogans as they march in support of the government near the Imam Khomeini grand mosque in the capital Tehran, Iran, Dec. 30, 2017.

Iranians chant slogans as they march in support of the government near the Imam Khomeini grand mosque in the capital Tehran, Iran, Dec. 30, 2017. Tens of thousands of regime supporters marched in cities across Iran in a show of strength for the regime after two days of angry protests directed against the country's religious rulers.

Iranian protesters chant slogans at a rally in Tehran, Iran, Dec. 30, 2017. Iranian hard-liners rallied Saturday to support the country's supreme leader and clerically overseen government as spontaneous protests sparked by anger over the country's ailing economy roiled major cities in the Islamic Republic.

Iranian protesters chant slogans at a rally in Tehran, Iran, Dec. 30, 2017. Iranian hard-liners rallied Saturday to support the country's supreme leader and clerically overseen government as spontaneous protests sparked by anger over the country's ailing economy roiled major cities in the Islamic Republic.