Oakland officials are doubling the reward for information they hope will lead them to three suspects wanted in the beating of an 80-year-old woman.
Authorities were previously offering a $5,000 reward, but doubled that to $10,000 Monday.
Police say the woman was beaten unconscious Thursday by three men on the 2700 block of Oakland's Grande Vista Avenue.
After the attack, police say the three men stood over her and laughed.
The woman suffered swelling of the brain, bleeding from the brain and an orbital fracture near one of her eyes.
Police have not released her name.