Nine people are being sought for the brutal beatdown of a 24-year-old woman and her father in Brooklyn, police said Thursday.

The woman and her 48-year-old dad were assaulted in front of a pain- management clinic in Bay Ridge at around 4 a.m. on July 29, according to police.

The female victim was transported to the hospital where she received staples in her head, eight stitches above her eye and treatment for a broken nose, police said.

Her dad suffered two blacks eyes and received four stitches over his lip.

Police released an image of three middle-aged women wanted for questioning in the attack.