A masked, armed man stormed into a home on SW Hinds Street and Belvidere Avenue SW at 3:45 p.m., according to police. The man stole cash and jewelry from the people inside before leaving on foot.
The first report in indicated the man might have fired shots during the robbery, but officers have yet to find any evidence of that.
Chris Foss of Foss Appraisals was running the estate sale when the robber burst in.
"(He) came in telling everyone to get on the ground," Foss said. "There were three employees and probably five or six customers in the house at the time for an estate sale we were running."
Foss said the man was in and out in roughly two minutes, getting away with approximately $4,000 in jewelry and $4,000 in cash.
Victim Allison Guinn said the robber seemed to know exactly what he was after.
"I heard the guy come in, screaming and yelling, telling everyone to get down on the floor with their heads down," Guinn said.
Witnesses said the robber wore black, was stocky and looked to be in his 20s, but police have not yet released a detailed description of the man.
About an hour after the robbery, police stopped a driver near California Avenue SW and SW Hanford Street, but that man has since been released.
Nobody was injured in the robbery.