
Yemeni anti-government protesters shout slogans during a demonstration demanding the ousting of Yemeni President Ali Abdullah Saleh, in Sana'a, Yemen, 04 May 2011. The Yemeni opposition urged anti-government protesters to press on until their demand of President Ali Abdullah Saleh's ousting is met, few days after Saleh rejected to sign a deal by the Gulf Cooperation Council (GCC) to end three months of an anti-government unrest in Yemen. EPA/YAHYA ARHAB

Yemeni anti-government protesters shout slogans during a demonstration demanding the ousting of Yemeni President Ali Abdullah Saleh, in Sana'a, Yemen, 04 May 2011. The Yemeni opposition urged anti-government protesters to press on until their demand of President Ali Abdullah Saleh's ousting is met, few days after Saleh rejected to sign a deal by the Gulf Cooperation Council (GCC) to end three months of an anti-government unrest in Yemen. EPA/YAHYA ARHAB

Yemeni anti-government protesters shout slogans during a demonstration demanding the ousting of Yemeni President Ali Abdullah Saleh, in Sana'a, Yemen, 04 May 2011. The Yemeni opposition urged anti-government protesters to press on until their demand of President Ali Abdullah Saleh's ousting is met, few days after Saleh rejected to sign a deal by the Gulf Cooperation Council (GCC) to end three months of an anti-government unrest in Yemen. EPA/YAHYA ARHAB

Yemeni anti-government protesters shout slogans during a demonstration demanding the ousting of Yemeni President Ali Abdullah Saleh, in Sana'a, Yemen, 04 May 2011. The Yemeni opposition urged anti-government protesters to press on until their demand of President Ali Abdullah Saleh's ousting is met, few days after Saleh rejected to sign a deal by the Gulf Cooperation Council (GCC) to end three months of an anti-government unrest in Yemen. EPA/YAHYA ARHAB

Yemeni anti-government protesters with the colors of the national flag painted on their faces shout slogans during a demonstration demanding the ousting of Yemeni President Ali Abdullah Saleh, in Sana'a, Yemen, 04 May 2011. The Yemeni opposition urged anti-government protesters to press on until their demand of President Ali Abdullah Saleh's ousting is met, few days after Saleh rejected to sign a deal by the Gulf Cooperation Council (GCC) to end three months of an anti-government unrest in Yemen. EPA/YAHYA ARHAB

Yemeni anti-government protesters shout slogans during a demonstration demanding the ousting of Yemeni President Ali Abdullah Saleh, in Sana'a, Yemen, 04 May 2011. The Yemeni opposition urged anti-government protesters to press on until their demand of President Ali Abdullah Saleh's ousting is met, few days after Saleh rejected to sign a deal by the Gulf Cooperation Council (GCC) to end three months of an anti-government unrest in Yemen. EPA/YAHYA ARHAB