Police and federal investigators in Rock Hill are looking for two young men who robbed postal service employees there. It happened just after six o'clock on Wednesday night outside the main post office.

Police say two young men with guns robbed workers loading mail and money onto mail trucks. Since this happened on post office property, it is a federal crime.

Police say they're looking for two young black men, both wearing ski masks. One was wearing a black pullover sweatshirt. The other was wearing dark clothes, and dark shoes with red laces. If you have any information that can help, call Rock Hill Police at 803-329-7200.