Fairfield police are investigating a knifepoint robbery at a gas station for the second time in two days.

The incident occurred at a Mobil Station in the Stratfield section of the town.

Police say a man came into the store with his face covered holding a knife and demanded money from the register.

Authorities don't know if this incident is related to two similar robberies at Star Fuels on Jennings Road.

"We are unsure at this point if the two robberies are related, they have similar traits or similar methods of operation, however there are some differences in the actions," says Fairfield Police Lt. Robert Kalamara. "There's a possibility that it could just be a copycat case similar to Star Fuels."

Anyone with information on the three recent robberies is asked to call police.