A pregnant woman was knocked to the ground and kneed in the stomach multiple times — allegedly by her 16-year-old sister — just north of the Financial District on Monday afternoon, police said.

The 22-year-old woman who was attacked is seven-months pregnant and was taken to the hospital with pain to her stomach, police said. She is expected to survive.

The argument began after the younger sibling called her sister to come over to Broadway Street near Battery Street around 10:15 a.m., police said.

The pregnant woman’s sister fled the scene after the attack. Police said on Tuesday morning that she has not been arrested.

Read more criminal justice news on the Crime Ink page in print. Follow us on Twitter: @sfcrimeink