CHARLOTTE, N.C. -- Someone opened fire here at a Mothers of Murdered Offspring anti-violence rally, wounding four people, police said.
The shooting Thursday night was the latest rash of violence in North Carolina's largest city, which has seen five people shot to death in the past week.
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At the vigil, supporters were calling attention to the death of a man who police say was fatally shot when he tried to rob a convenience store, The Charlotte Observer reported.
A statement from police said officers were called by someone at the vigil who said a person pulled out a gun and began firing at people.
Officers did not find anyone shot at the scene but learned that each victim had called for help from a different location after the crowd scattered.
Police have made no arrests in the case.