They’ve been best friends for most of their lives. Now, two Atlanta women are fighting to survive after being hit by a car that didn’t stop, their families said.

Adrienne Smith, 22, and Brianna Johnson, 21, were talking as they sat on a wall near a southwest Atlanta park around 12:30 a.m. Saturday when they were hit by a driver who left the roadway, police said.

Investigators believe the driver, who has not yet been identified, may have been driving a stolen rental car at the time of the crash on Peeples Street. He ran from the scene after striking Smith and Johnson, police said.

Smith’s injuries forced doctors to amputate part of her leg, and Johnson’s pelvis is broken, police said. The young women also have other broken bones.

As their families pray for the women to recover, Johnson and Smith continue to communicate, despite being unable to speak because of their injuries.

“They are more concerned about each other than anything else,” Amy Smith, Adrienne’s mother, told Channel 2 Action News on Monday. “They have a bond that is only going to get stronger.”

The best friends have been able to exchange notes, their mothers said.

Family members have opened accounts at Wells Fargo in each of the women’s names to assist with medical costs.

Anyone with information on the case is asked to call Crime Stoppers at 404-577-8477.