Algerian protesters holding their national flag chant slogans including "No to the police state" and "Bouteflika out," a reference to President Abdelaziz Bouteflika during a demonstration in Algiers, Algeria on Saturday February 12, 2011.
An Algerian protester holds an Algerian soccer flag front of riot police during a demonstration in Algiers, Algeria on Saturday February 12, 2011.
The Uprisings in Tunisia and the successful down fall of President Hosni Mubarak of Egypt has led to anti-government protests in a number of Arab nations demanding democratic reforms.
A supporters of the Yemeni government holds a poster of President Ali Abdullah Saleh and waves a dagger during a clash with anti-government demonstrators, unseen, in Sanaa, Yemen, on Monday, February 14, 2011.
This photo, taken by an individual not employed by the Associated Press and obtained by the AP outside Iran shows Iranian protestors throwing stones at ant-riot police officers, during an anti-government protest in Tehran, Iran on Monday, February 14, 2011.
Algeria - like Egypt, Tunisia and other countries in the region - has recently witnessed demonstrations for greater freedoms and better living standards.The protesters chanted "Bouteflika out!" - in reference to the country's President Abdelaziz Bouteflika.
Thousands of people defied a government ban on demonstrations and poured into the Algerian capital for a pro-democracy rally on Saturday, a day after weeks of mass protests toppled Egypt's authoritarian leader.
Yemeni anti-government protestors shout slogans during a demonstration demanding political reform and the resignation of President Ali Abdullah Saleh in Sanaa, Yemen on Monday, February 14, 2011.
This photo, taken by an individual not employed by the Associated Press and obtained by the AP outside Iran shows Iranian protestors attending an anti-government protest as a garbage can is set on fire, in Tehran, Iran on Monday, February 14, 2011.
Bahraini demonstrators run from tear gas on Monday, February 14, 2011, as riot police disperse a protest in the village of Duraz, Bahrain, outside the capital of Manama.
Bahrain has been hit by sporadic unrest for decades as Shias - who make up 70% of the country's 530,000 citizens - press for greater political power. The country has been headed since 1783 by the Khalifah family, members of the Bani Utbah tribe, who expelled the Persians.
Demonstrations broke out nationwide in Bahrain in response to calls on social media sites for major anti-government protests and were dispersed by riot police firing tear gas and chasing demonstrators.
Iranian MPs call for opposition leaders Mir Hossein Mousavi and Mehdi Karroubi to be executed after deadly anti-government protests on Monday.
Eyewitnesses report that sporadic clashes have erupted in central Tehran's Enghelab or Revolution square between security forces and opposition protesters. The demonstrators were chanting "death to the dictator," referring to the country's hardline president that the opposition believes was re-elected through fraud in 2009.
Bahraini women demonstrate on Monday, February 14, 2011, in the village of Duraz, Bahrain, outside the capital of Manama.
In Yemen, it was supporters of President Saleh, in power since 1978, who forced anti-government protesters from the centre of Sanaa.
More than 1,000 people protested in Yemen for a fourth straight day on Monday, demanding political reforms and the ouster of the US-allied president in demonstrations inspired by the upheaval in Egypt.