SAN DIEGO (CNS) - San Diego police Friday sought a woman believed to be an accomplice to the skeleton masked man suspected in two robberies of a Rancho Penasquitos convenience store.

The woman's image was captured on surveillance video as she entered the Circle K, at 9300 Paseo Montalban, just before the suspect in both robberies, according to San Diego police Lt. Andra Brown.

The first of the two holdups was about 3 a.m. Feb. 29 when the suspect, clad in a novelty skeleton mask and matching gloves, called the clerk to the service counter and displayed a handgun tucked into his waistband, Brown said.

The masked man got away with cash from the register and cigarettes, Brown said.

He returned to the store about 4:30 a.m. March 1 and committed a similar robbery, Brown said.

The suspect was described as a Hispanic man between 26 and 30 years old, who was 5 feet 5 to 5 feet 8 and weighed about 180 pounds. He was wearing a black jacket, black pants, a black baseball cap and a skeleton mask. He wore black gloves with the outline of bones on the backs in the first robbery and purple latex gloves in the second. He had a black handgun tucked into the waistband of his pants during the first robbery.

The clerk, who was on duty during both robberies, noticed a woman enter the store just before the suspect in both incidents, Brown said. Investigators believe she may have been involved in the crimes, she said.

The woman was described as Hispanic and in her 30s. She had brown hair with blond highlights, with the top portion pulled back into a ponytail. She stood about 5 feet 5 with a medium to heavy build. She was wearing black Capri pants and a black nylon jacket with a red collar.

Anyone with information about the robberies was asked to call the San Diego Police Department Robbery Unit at (619) 531-2299, or Crime Stoppers at (888) 580-8477.