Armed robbers took 40 plants from a medical marijuana dispensary early Saturday in Seattle.

Police say three men forced their way inside the dispensary about 4:30 a.m. and two were armed with handguns. They held the 70-year-old night watchman at gunpoint.

The robbers also took a laptop computer and fled in the watchman's car. He was not injured. the

Police say the robbers indicated by their actions they were familiar with dispensary in the Lake City neighborhood, but the watchman didn't know them.

The car was later found park in the area.