A two-vehicle on I-285 westbound near Roswell Road brought traffic to a halt for several hours Sunday while investigators cleared the debris.

The wreck happened around 3:15 p.m. and blocked all lanes but one for several hours. By 8 p.m., traffic was flowing again,

The wreck caused a truck pulling a wood-chipper to land on its side, blocking several lanes, Lt. Steve Rose with Sandy Springs said.

Four people were injured, including one seriously, Rose said. All four were taken to North Fulton Hospital.

The cause of the wreck is still under investigation.

Return to ajc.com for updates.