Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Yemen Braces for More Protests VOA News May 27, 2011 Armed tribesmen loyal to tribal leader Sheikh Sadiq al-Ahmar stand at the entrance of a building near al-Ahmar's house during clashes in Sanaa, May 26, 2011 Photo: Reuters Armed tribesmen loyal to tribal leader Sheikh Sadiq al-Ahmar stand at the entrance of a building near al-Ahmar's house during clashes in Sanaa, May 26, 2011 Yemeni opposition leaders are calling for anti-government protests on Friday, as the death toll mounts from this week's fighting between security forces and tribal loyalists. Witnesses and activists say nearly 100 people have been killed in clashes between government forces and loyalists to Sheikh Sadiq al-Ahmar, the leader of the Hashid tribe. The battles have become the most serious threat to President Ali Abdullah Saleh's grasp on power after three months of opposition protests. On Thursday, Yemen's defense ministry announced an arrest order for al-Ahmar. However, the tribal leader dismissed the warrant and warned President Saleh that he had the option of stepping down or being held accountable for "dragging Yemen into a civil war." New tribal fighters loyal to Sheikh Abdul Majid al-Zindani - who is allied with the Al-Ahmar family and faces U.S. sanctions as a terrorist financier - have also been fighting pro-government forces. In a separate development, India announced Friday that it is advising all of its nationals in Yemen to leave. The foreign ministry cited the escalating violence. About 11,000 people from India live in Yemen. Saleh has refused to leave power after nearly 33 years of authoritarian rule. Some information for this report was provided by AFP. Follow our Middle East reports on [1]Twitter and discuss them on our [2]Facebook page. References 1. http://twitter.com/VOAMiddleEast 2. http://www.facebook.com/pages/VOAMiddleEastVoices/124360240958667?%20%20%20%20v=wall .