A man armed with a knife robbed a Valley Stream grocery store Friday night, Nassau County police said.
Authorities said the robber, described as 5 feet, 9 inches tall, entered Fortune Grocery at 246 N. Central Ave., brandished his knife and demanded money from a cashier at 8:20 p.m.
The robber was wearing a gray hooded sweatshirt, black ski mask and gloves. He fled on foot with an undisclosed amount of cash.
No injuries were reported.
Anyone with information is asked to call Nassau County Crime Stoppers at 1-800-244-TIPS.
All callers will remain anonymous.