HAYWARD -- A pair of masked gunmen held up a south Hayward drugstore late Wednesday, binding three female employees with zip ties before stealing drugs from the pharmacy, police said.

The armed robbers also held two male customers at bay during the late night heist at Ted's Drug Store at 27453 Hesperian Blvd., said Lt. Roger Keener.

No one was seriously injured.

Officers responded to a call just before 11 p.m. at the pharmacy, where they found five victims who had been held at gunpoint, Keener said.

The employees told police that two men armed with handguns and wearing ski masks entered the store, made them sit on the floor and then bound their hands with zip ties.

Two male customers who entered the store during the robbery were also ordered to the ground, Keener said. The gunman did not tie the men up.

The suspects stole unknown medications from the pharmacy and ran from the store.

"One of the three employees was able to escape and call police so the women were not tied up long," Keener said.

The pharmacy is located across the street from Kaiser Permanente Hospital near a shopping center.

Police are reviewing video surveillance from the store that may have captured the robbery on camera, Keener said.

He also said the incident is the first robbery at the pharmacy.

Anyone with information about this incident can call police at 510-790-6800 or at the anonymous tip line at 510-293-7000.

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