Update (7:20 p.m.): Cobb Police Sgt. Dana Pierce has told Northeast Cobb Patch that there were three vehicles involved in the accident, which occurred at 4:20 p.m. on eastbound I-285 just west of the Chattahoochee River.
Pierce says that a semi tractor trailer, a small pickup truck, and a passenger car were involved in the accident, but the circumstances of the accident are still under investigation.
He also confirmed one fatality, a passenger in the pickup. The driver has been taken to the hospital, but Pierce had no updates on his condition.
Update (6:40 p.m.): The Cobb County Police Department is asking motorists to avoid I-285 at all costs while they work on their investigation and clearing the accident site.
Police suggested alternate routes such as using I-20 if traveling on I-75, or exiting the interstate before reaching I-285.
"We're not going to be able to have this wreck cleared for some time," said Police Sgt. Dana Pierce.
Update (6:15 p.m.): According to The Atlanta Journal-Constitution, the investigation into the accident may not be completed until 9 p.m. In the meantime, authorities are not releasing information on the number of fatalities, saying only that there was more than one.
Information about the nature of the accident and the number of vehicles involved has not been released.
Original Story:A major accident with "at least one fatality" on 285 eastbound has shut down all lanes of traffic, says the Georgia Department of Transportation.
The accident occurred at 285 and Powers Ferry Road. Delays are expected to be extremely heavy and the backup has already reached Georgia 400.
It is not yet known what the circumstances of the accident. FOX 5 Atlanta has confirmed at least one person has died.
Stay with Northeast Cobb Patch as we update this story.