Denver police investigators believe the same armed and masked robbers have struck at multiple marijuana businesses in the metro area since early November.

The robbers have brandished multiple weapons in five robberies, the first on Nov. 4 and the most recent on Dec. 11, according to police. All the robberies have happened at night and all four robbers have worn hooded jackets. Police believe a silver 2009 Chevrolet Equinox SUV has been used in the robberies.

#Denver, can you help investigators solve these robbery cases? If you have any info, you could earn a cash reward! Just call @CrimeStoppersCO at 720-913-7867. pic.twitter.com/ndjCZuMHw1

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