An anti-government protester flashes the victory sign through a gap in his national flag raised by other demonstrators during a demonstration demanding the resignation of Yemeni President Ali Abdullah Saleh, in Sanaa, Yemen, on Saturday, March 5, 2011. #

Tens of thousands of Yemenis take to the streets on March 31, 2011 in the town of Ibb, 190 km southwest of Sanaa, calling for the ouster of President Ali Abdullah Saleh. #

An anti-government protester holds up a scarf reading, in Arabic, "My country, I love you my country", during a demonstration demanding the resignation of Yemeni President Saleh, in Sanaa, Yemen, on Sunday, May 1, 2011. #

An anti-government protester, center, wearing a red scarf, looks up while praying with other women during a demonstration demanding the resignation of President Saleh, in Sanaa, Yemen, on Wednesday, April 6, 2011. #

Anti-government protesters are carried by a bulldozer during a demonstration to demand the ouster of Yemen's President Saleh in Damt town of the southern Dhalea province, on May 20, 2011. #

In this photo taken through a window, armored vehicles of Yemeni security forces, take position in a street next to the house of Sheik Sadeq al-Ahmar, the head of the powerful Hashid tribe, during clashes with tribesmen loyal to him, in Sanaa, on Tuesday, May 31, 2011. Heavy fighting resumed Tuesday in Yemen's capital between government troops and followers of the country's most powerful tribal leader, ending a brief cease-fire and again raising the prospect that Yemen's political crisis could veer into civil war. #

Police use water cannons to disperse anti-government protesters during clashes with police in the southern Yemeni city of Taiz, on May 29, 2011. Yemeni security forces opened fire on protesters in the southern city of Taiz on Sunday, killing four and wounding 90, hospital sources said. #

A protester walks past a burning vehicle during a protest strike paralyzing the southern Yemeni city of Aden, on April 9, 2011, as protesters kept up the heat on President Saleh to step down. #

Yemeni protesters perform Friday noon prayers during a rally against President Saleh in the streets of Ibb, on May 13, 2011, 190 km southwest of Sanaa, before the elite Republican Guards opened fire on the anti-regime protesters killing at least three people. #

A Yemeni boy, center, holding his national flag, stands between anti-government protesters attending Friday prayers during a demonstration demanding the resignation of President Saleh, in Sanaa, on March 11, 2011. #

Yemeni anti-government protesters tear apart and devour a loaf of bread as others shout slogans during a demonstration demanding the resignation of President Saleh in Sanaa, Yemen, on on April 2, 2011. #

An anti-government protestor flashes the victory sign while chanting slogans during a demonstration demanding the resignation of President Saleh, in Sanaa, Yemen, on Tuesday, March 29, 2011. #

People gather in a street of Taiz, south of Yemen's capital Sanaa, on April 4, 2011 after Yemeni security forces shot dead 17 anti-regime demonstrators and wounded scores more, on the second day of lethal clashes in the city. #

Anti-government protesters block the road during clashes with Yemeni security forces in Taiz, Yemen, Monday, May 9, 2011. Witnesses and medics said Yemeni security forces opened fire on protesters in a flashpoint city in the country's south in a bid to break up a day-old sit-in, killing two protesters. #

Backdropped by a Yemeni flag, a female anti-government protester, during a demonstration demanding the resignation of of President Saleh, in Sanaa, on Sunday, April 24, 2011. #

Yemeni security forces arrest a man during anti-regime demonstrations in Taiz, the second most-populated city of Yemen, south of Sanaa, on April 20, 2011, as the Yemeni opposition called for mass protests after deadly confrontations with police. #

Anti-government protesters run after soldiers opened fire to disperse them as they began gathering for a demonstration to demand the ouster of Yemen's President Saleh in the southern city of Taiz, on May 31, 2011. #

A relative of Ahmad Saleh, who was wounded last Wednesday in clashes with Yemeni security forces and died of his wounds on Saturday, reacts during his funeral procession at the site of a demonstration demanding the resignation of Yemeni President Saleh, in Sanaa, on Sunday, May 1, 2011. #

Tribesmen take positions next to the house of Sheik Sadeq al-Ahmar, the head of the powerful Hashid tribe, during clashes with Yemeni security forces in Sanaa, on Tuesday, May 24, 2011. Fighters for Yemen's largest tribe sealed off key government buildings and barricaded streets in the heart of the capital Tuesday as the revolt against President Ali Abdullah Saleh sharply escalated after militiamen turned their guns against government forces. #

A wounded man lying in a hospital bed is checked by a nurse after being injured in clashes with Yemeni security forces in Sanaa, on Monday, May 23, 2011. Buildings in Sanaa were blasted and government offices set on fire in an eruption of violence after President Ali Abdullah Saleh refused to sign an agreement calling on him to step down. #

A Yemeni army soldier is lifted by anti-government protesters during a demonstration demanding the resignation of President Saleh, in Sanaa, on Friday, May 27, 2011. #

A tribesman loyal to Sheik Sadeq al-Ahmar, the head of the powerful Hashid tribe, stands next to a wall damaged following clashes with Yemeni security forces, next to al-Ahmar's house, in Sanaa, on Saturday, May 28, 2011. #

Fire and smoke erupts during clashes between tribesmen loyal to Sheik Sadeq al-Ahmar, the head of the powerful Hashid tribe, and Yemeni security forces in Sanaa, Yemen, late Thursday, June 2, 2011. #