Riverhead Town police are asking for the public’s help in finding a man who robbed a service station Thursday night on Osborne Avenue.

The man, dressed all in black, entered the store at Riverhead Citgo at 10:43 p.m. and demanded money, police said.

advertisement | advertise on newsday

The clerk complied and the robber fled south on Osborne Avenue, police said.

Anyone with any information about the robbery was asked to call Riverhead Town police 631-727-4500, Ext. 327. All calls will be kept confidential, police said.