Yemeni anti-government protesters sit beneath a giant banner reading in Arabic 'No immunity for murderers' and a big poster of protesters who were allegedly killed by security forces, during a protest demanding the prosecution of President Ali Abdullah Saleh for alleged crimes against humanity in Sana'a, Yemen, 11 November 2011. According to media sources, army forces loyal to Yemeni President Ali Abdullah Saleh shelled residential areas in the southern city of Taiz, killing at latest nine people and wounding more than 20 others. EPA/YAHYA ARHAB
A defected Yemeni soldiers holds up a gun as he escorts anti-government protesters during a protest demanding the prosecution of President Ali Abdullah Saleh for alleged crimes against humanity in Sana'a, Yemen, 11 November 2011. According to media sources, army forces loyal to Yemeni President Ali Abdullah Saleh shelled residential areas in the southern city of Taiz, killing at latest nine people and wounding more than 20 others. EPA/YAHYA ARHAB
A general view shows the al-Saleh Mosque built by Yemeni President Ali Abdullah Saleh in Sana'a, Yemen, 11 November 2011. According to media sources, army forces loyal to Yemeni President Ali Abdullah Saleh shelled residential areas in the southern city of Taiz, killing at latest nine people and wounding more than 20 others. EPA/YAHYA ARHAB
Yemeni anti-government protesters shout slogans during a protest demanding the prosecution of President Ali Abdullah Saleh for alleged crimes against humanity in Sana'a, Yemen, 11 November 2011. According to media sources, army forces loyal to Yemeni President Ali Abdullah Saleh shelled residential areas in the southern city of Taiz, killing at latest nine people and wounding more than 20 others. EPA/YAHYA ARHAB
Two Yemeni grooms shout slogans as they take part in a protest demanding the prosecution of President Ali Abdullah Saleh for alleged crimes against humanity in Sana'a, Yemen, 11 November 2011. According to media sources, army forces loyal to Yemeni President Ali Abdullah Saleh shelled residential areas in the southern city of Taiz, killing at latest nine people and wounding more than 20 others. EPA/YAHYA ARHAB
Yemeni anti-government protesters use umbrellas as shade against the sun during a protest demanding the prosecution of President Ali Abdullah Saleh for alleged crimes against humanity in Sana'a, Yemen, 11 November 2011. According to media sources, army forces loyal to Yemeni President Ali Abdullah Saleh shelled residential areas in the southern city of Taiz, killing at latest nine people and wounding more than 20 others. EPA/YAHYA ARHAB
