SAN ANTONIO -

San Antonio police are investigating a series of crimes that included an armed robbery at a Valero store and a Porsche that was set on fire on the Southwest Side.

Officers responded to the robbery at the Valero on Interstate 35 at Fischer Road around 4:30 a.m. Monday.

A group of four suspected robbers, three men and a woman, entered the Valero wearing ski masks.

The clerk said two of the suspects were armed and one suspect held a gun to his head. 

The clerk told SAPD the robbers took his wallet and the wallets of two customers. They also took an unknown amount of cash from the store. 

The suspects fled in a Porsche they arrived in, and stole the clerk's grey Nissan Altima.

SAPD then received a call a short time later about a car on fire in the 1400 block of Edris Drive.

Officers arrived three minutes later and saw the car but no suspects. The car turned out to be the Porsche which police said may have also been stolen. Officers said it was registered to a dealership.

The SAPD Blue Eagle helicopter began to search for the suspects, but they had not been located as of 8 a.m. Monday. Police believe they are still in the stolen Nissan Altima. No injuries were reported.

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