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. Gunfire Erupts in North Darfur, Sudan During Protest VOA News 02 May 2010 Security guard from SLM guards a polling station in the refugee camp of Zamzam Photo: AP Security guard from SLM guards a polling station as part of the elections security arrangements between them and the Sudanese government in the refugee camp of Zamzam on the outskirts of the Darfur town of el Fasher, Sudan (File) Gunfire erupted Sunday in Sudan's North Darfur state during a protest against a failed investment scheme. The joint United Nations-African Union peacekeeping mission in Darfur said gunfire was heard as hundreds of protesters were seen moving toward the center of the state capital, El Fashar. Witnesses said police opened fire when protesters marched to the city center to demand their money back. There is no official word on casualties. U.N. officials told the Reuters news agency last week Sudanese investors have complained about losing large amounts of money in a "Ponzi scheme," a pyramid fraud where money is being paid illegallly from one investor to another. Some information for this report was provided by AFP and Reuters. .