SOUTH SAN FRANCISCO -- Police are investigating two armed robberies that occurred in South San Francisco over the weekend.

The first happened about 5 p.m. Saturday at the Kwik Serve Gas Station at 209 El Camino Real. The suspect reportedly walked in wearing a hoodie backward to cover his face and pulled a black handgun on the clerk, police said.

The suspect made off with an undisclosed amount of money from the cash register and was last seen running toward Northwood Drive and Alida Way, authorities said. The store employee was uninjured.

In the second robbery, about 12:30 a.m. Sunday, two masked men armed with two shotguns and a handgun approached a man sitting in his parked car in the 400 block of Cypress Avenue. The suspects forced the 41-year-old man out of his car and assaulted him before pistol whipping him in the head and leaving him unconsciousness in the back seat of his car.

The man regained consciousness and drove himself to Seton Medical Center, and the suspects made off with some of the man's belongings, police said.

The suspect in the first case is described as a white or Hispanic man in his early 20s, standing about 5 feet 8 inches tall with brown hair. He was wearing a red hoodie with white lettering, beige cargo shorts, black basketball shoes and a black messenger bag.

The suspects in the second robbery were described as a slender Hispanic man in his 20s, standing about 5 feet 9 inches tall with a slender build. He was wearing a black mask, a gray sweatshirt with a leaf design on the front, black pants and a silver chain. His partner was described as a black man in his 20s of the same height and build, and was wearing a black mask, black Nike hoodie with white lettering and black pants.

Anyone with information about either robbery is asked to contact South San Francisco police at 650-877-8900 or the anonymous tip line at 650-952-2244,

Contact Erin Ivie at eivie@bayareanewsgroup.com. Follow her at Twitter.com/erin_ivie.