Law enforcement officials say at least two men walked up to the party at 96th Avenue and Olive Street just after 6 p.m. and started shooting. Seven people were shot.
"Currently six of the victims are in stable condition and one victim still remains in critical but stable condition," said Oakland Police Spokesperson Johnna Watson.
Investigators say the victims are all men ranging in age from 23 to 31 years-old. They don't know if they were all guests at the party and are asking anyone with information to please come forward.
"What we do know is the majority of the victims were attending the party. We're trying to put the pieces together if any individual bystanders may have been struck," said Watson.
City Council member Noel Gallo is the chairperson of the Public Safety Committee. He says he is outraged, but not surprised and insists the city could and should do more to fight crime.
"We need to do, you know, implement every measure necessary. Whether it's stop and frisk to get some of these thugs off the street and get the guns out of their cars. At the same time, if I need to include more highway patrol, or more sheriffs or more police, that's what I've got to do," said Gallo.
Gallo points out kids will now be out on the streets because of the holidays and he is concerned it just isn't safe. He says his relatives visiting from Arizona for Thanksgiving are also nervous.
"I mean, you should hear the remarks that they're making. And, we are out of control. So when people come in and see what we're going through, clearly recognize that we're living in an area that's not safe," he said.
Police are looking into whether the shooting was gang-related.