FREMONT -- Police are looking for a masked gunman who robbed a woman as she walked along a busy city street here Monday evening.

The woman was not injured, but the armed bandit did make off with a pocketful of cash, police said.

Officers responded at 6:40 p.m. to the intersection of Fremont Boulevard and Sundale Drive just east of the Crossroads Shopping Center for a report of an armed robbery, said Detective Bill Veteran.

A preliminary investigation revealed a man approached a 27-year-old Fremont woman as she walked home and pointed a black handgun at her, Veteran said.

The suspect, who wore a black bandana over his face, took $40 from the woman took off on foot. Officers searched the area, but did not find the him, Veteran said.

Police did not release full description of the supsect.

Anyone who witnessed the armed robbery or who has information about the crime is asked to call 510-790-6800 or the anonymous tip line at 510-494-4856.

Contact Natalie Neysa Alund at 510-293-2469. Follow her at Twitter.com/nataliealund.