NORTHRIDGE (CBSLA) – Authorities are looking for armed robbers who hit at least four 7-Eleven convenience stores across the San Fernando Valley on Friday morning.

The cash robberies occurred in Lake Balboa, Northridge, Chatsworth and Granada Hills within a span of two hours, Los Angeles police said.

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In each case there were two suspects, at least one of whom was carrying a semi-automatic handgun. There were no injuries.

The robberies occurred as follows:

  • 12:15 a.m. in the 17200 block of Vanowen Street in Lake Balboa
  • 12:52 a.m. in the 8700 block of Corbin Avenue in Northridge
  • 12:53 a.m. in the 20800 block of Lassen Street in Chatsworth
  • 1:25 a.m. in the 16100 block of Devonshire Street in Granada Hills

Investigators are still trying to determine if all four robberies are connected.

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According to security footage, hooded and masked robbers walk up and tell an employee to open a register before pulling out a gun.

Investigators say it’s unclear if the robberies are connected… but detectives are looking into the possibility the suspects are part of a robbery crew. They are also looking into why these 7-11s were targeted.

Lyssa Wright, a customer at 7-11 was there when it happened. “It was shocking, it’s scary, it’s really sad, I grew up out here.”

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Anyone with information should contact LAPD.