Police are searching for an armed robber who stuck up a gas station early Monday in Westbury, stealing cash.

The robbery occurred at the Conoco gas station on Union Avenue at 12:18 a.m., Nassau County police said.

No one was injured.

Police said the suspect, wearing a black mask and a black hooded sweatshirt and armed with a handgun, entered the station and approached clerk, demanding cash. The attendant complied and the robber fled the scene on foot, police said.

Police did not detail how much was taken.

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Anyone with information regarding the robbery is being asked to call Crime Stoppers at 800-244-8477.

All calls will remain confidential.