epa01724758 Yemeni cleric Abdul-Majeed al-Zindani (L) talks with cleric Mohammed Ba-Kathir during a news conference in the capital Sana'a, Yemen, on 09 May 2009. Yemeni Islamic and tribal leaders called on the Yemeni government and the opposition political parties to hold a dialogue to maintain the unity of in the troubled Arab country and end clashes in the south between security forces and disaffected tribesman who accuse the government of discrimination and marginalization. EPA/YAHYA ARHAB