On Jan. 27, Brown was driving a Jeep with her friend Danyela Da Silva Bradley as passenger, while the other vehicle involved in the crash was a Ford Taurus, according to the report.
Brown, 21, lost control of her Jeep and crossed over into the lanes running in the opposite direction, then collided with the Taurus, the report said.
The report adds that both the driver of the Taurus Russell Eckerman and Brown's passenger were taken to North Fulton Hospital due to injuries suffered from the crash.
In an exclusive statement to ABC News, Russell's mother, Bert Eckerman, said of the accident, "Russell is a great, caring son, and this was a terrible tragedy. He was on his way to work when he was met with this tragic incident. Please respect our privacy as we pray and wait for Russ to heal.”
The Eckerman's lawyer, Alan Herman, added, "I have known the Eckerman family for the past 33 years and am very sorry that this incident has occurred. Russell used to babysit for my children when they were youngsters. Russell was on his way to work when this incident occurred. He has been hospitalized since the date of the occurrence and has been unable to speak. His medical condition as I understand it, is serious, but everyone is hopeful that he will recover and get back to being Russell."
Roswell Police told ABC News the accident is still under investigation and will not comment on it further.
Brown was found face down in her bath tub and was taken to North Fulton Hospital, but then moved to Emory University Hospital.
Roswell Police also confirmed that Brown's incident at her home less than two weeks ago is classified as a criminal investigation. That has always been the case, a spokesperson said in a statement on Wednesday.
"The Roswell Police Criminal Investigation Division, who is investigating the incident, conducts criminal investigations," Lisa Holland, the Roswell public information officer, said in a statement to ABC News. "The incident has always been under criminal investigation and has not been reclassified as a criminal investigation. Criminal investigations may or may not result in criminal charges being brought against individuals."
Brown has been surrounded by friends and family, including her father, who has continued to ask for privacy while they monitor her condition.
"God is hearing our prayers," Brown told ABC News in a statement. "We continue to request privacy in this matter. We thank everyone that supported the vigil for Bobbi Kristina."
Her partner, Nick Gordon, issued a statement through his attorneys, saying that "he remains in constant prayer for his companion and he hopes to be reunited with her soon."
The Houston family has added that she's "fighting for her life."
This past Monday night, a public "Shining a Light for Healing" vigil was held in her honor in nearby Riverdale, Georgia, where several hundred people attended to pray for Brown.