A woman votes in a polling station located in a school during a referendum in the town of Abyei
A woman votes in a polling station located in a school during a referendum in the town of Abyei October 28, 2013. Residents of the remote and disputed Abyei border region said they would press ahead with their own referendum on whether to join Sudan or South Sudan, despite warnings it could trigger violence in the volatile area. REUTERS/Goran Tomasevic (ABYEI - Tags: CIVIL UNREST POLITICS ELECTIONS)
A woman sits inside a mosquito tent near a polling station located in a school during a referendum in the town of Abyei
A woman sits inside a mosquito tent near a polling station located in a school during a referendum in the town of Abyei October 28, 2013. Residents of the remote and disputed Abyei border region said they would press ahead with their own referendum on whether to join Sudan or South Sudan, despite warnings it could trigger violence in the volatile area. REUTERS/Goran Tomasevic (ABYEI - Tags: CIVIL UNREST POLITICS ELECTIONS)
A woman sits inside a mosquito tent near a polling station located in a school during a referendum in the town of Abyei
A woman sits inside a mosquito tent near a polling station located in a school during a referendum in the town of Abyei October 28, 2013. Residents of the remote and disputed Abyei border region said they would press ahead with their own referendum on whether to join Sudan or South Sudan, despite warnings it could trigger violence in the volatile area. REUTERS/Goran Tomasevic (ABYEI - Tags: CIVIL UNREST POLITICS ELECTIONS)
An elderly man walks out of a polling station located in a school during a referendum in the town of Abyei
An elderly man walks out of a polling station located in a school during a referendum in the town of Abyei October 28, 2013. Residents of the remote and disputed Abyei border region said they would press ahead with their own referendum on whether to join Sudan or South Sudan, despite warnings it could trigger violence in the volatile area. REUTERS/Goran Tomasevic (ABYEI - Tags: CIVIL UNREST POLITICS ELECTIONS)
An elderly woman waits to vote inside a polling station located in a school during a referendum in the town of Abyei
An elderly woman waits to vote inside a polling station located in a school during a referendum in the town of Abyei October 28, 2013. Residents of the remote and disputed Abyei border region said they would press ahead with their own referendum on whether to join Sudan or South Sudan, despite warnings it could trigger violence in the volatile area. REUTERS/Goran Tomasevic (ABYEI - Tags: CIVIL UNREST POLITICS ELECTIONS)
An elderly man waits to vote inside a polling station located in a school during a referendum in the town of Abyei
An elderly man waits to vote inside a polling station located in a school during a referendum in the town of Abyei October 28, 2013. Residents of the remote and disputed Abyei border region said they would press ahead with their own referendum on whether to join Sudan or South Sudan, despite warnings it could trigger violence in the volatile area. REUTERS/Goran Tomasevic (ABYEI - Tags: CIVIL UNREST POLITICS ELECTIONS)
A man poses for photographs after voting, inside a polling station located in a school during a referendum in the town of Abyei
A man (L) poses for photographs after voting, inside a polling station located in a school during a referendum in the town of Abyei October 28, 2013. Residents of the remote and disputed Abyei border region said they would press ahead with their own referendum on whether to join Sudan or South Sudan, despite warnings it could trigger violence in the volatile area. REUTERS/Goran Tomasevic (ABYEI - Tags: CIVIL UNREST POLITICS ELECTIONS PORTRAIT)
Women wait to vote inside a polling station located in a school during a referendum in the town of Abyei
Women wait to vote inside a polling station located in a school during a referendum in the town of Abyei October 28, 2013. Residents of the remote and disputed Abyei border region said they would press ahead with their own referendum on whether to join Sudan or South Sudan, despite warnings it could trigger violence in the volatile area. REUTERS/Goran Tomasevic (ABYEI - Tags: CIVIL UNREST POLITICS ELECTIONS)
A woman stands in front of her mosquito tent near a polling station located in a school during a referendum in the town of Abyei
A woman stands in front of her mosquito tent near a polling station located in a school during a referendum in the town of Abyei October 28, 2013. Residents of the remote and disputed Abyei border region said they would press ahead with their own referendum on whether to join Sudan or South Sudan, despite warnings it could trigger violence in the volatile area. REUTERS/Goran Tomasevic (ABYEI - Tags: CIVIL UNREST POLITICS ELECTIONS)
Men walk in front of their tent near a polling station located in a school during a referendum in the town of Abyei
Men walk in front of their tent near a polling station located in a school during a referendum in the town of Abyei October 28, 2013. Residents of the remote and disputed Abyei border region said they would press ahead with their own referendum on whether to join Sudan or South Sudan, despite warnings it could trigger violence in the volatile area. REUTERS/Goran Tomasevic (ABYEI - Tags: CIVIL UNREST POLITICS ELECTIONS)