A Texas man was fatally shot Sunday morning in a gas station parking lot by robbers possibly wearing ghost masks, police said.

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Police said the man was shot around 2:30 a.m. by the masked men who were also wearing white jackets, KTRK reported.

"At this point, we don't have motive," Houston police detective Jason Escobar told the Houston Chronicle. "The possible two suspects fled the scene in an unknown direction."