PETALING JAYA - Two masked gunmen in the Malaysian state of Selangor opened fire at an upscale supermarket during a robbery on Sunday (Feb 11), stunning the store's staff and shoppers who luckily escaped unscathed.

More than RM4,000 (S$1,339) was stolen in the armed robbery that took place at the Jaya Grocer Supermarket in the exclusive residential area of Valencia in Sungai Buloh, the Malay Mail Online website reported. The area is also home to the luxurious Sierramas gated community developments.

Police said they received a call from a woman alerting them to the robbery at around 11.25am.

"Witnesses claimed two unidentified suspects wearing full face helmets fired two shots towards the interior and closed-circuit television cameras before committing the robbery," said Sungai Buloh police chief S. Somu.

Three cashiers, an unarmed security guard and a customer were at the supermarket during the incident.

He said the two suspects made away with two cash register drawers, believed to contain around RM4,000 in cash, and rode off on a motorcycle that had been fitted with fake number plates.

Two shell casings and two bullets were also found by police after combing the crime scene.

A customer, who was making payment at the time of the robbery, later found that her wallet with RM300 in cash was stolen. She has since lodged a police report.