Four armed suspects broke into a home and pistol-whipped two victims in the 1700 block of Oakdale Avenue on Thursday around 1 a.m., police said.
They wielded handguns and knives and demanded money from the four victims inside, police said. The victims ranged in age between 14 and 42, police said.
The four suspects, described as three black men and a Hispanic woman in her 30s, pistol-whipped a 42-year-old woman and 24-year-old man after being informed there was no money, police said.
The hooligans then tied up the victims, took what jewelry and money they could find and fled, police said.
The victims were taken to San Francisco General Hospital with non-life-threatening injuries, police said. No arrests have been made.