COLUMBUS (WCMH)– Columbus Police are investigating after a man was killed in a car accident early Thursday morning.According to the Columbus Division of Police, at about 3:39am, an unidentified man was driving a Toyota vehicle westbound on E. 11th Avenue near Ohlen Avenue, and at the same time Greg Davis, 33, was driving eastbound in the area.Police say Davis’ vehicle crossed over the center line and collided head-on with the unidentified man’s vehicle.The unidentified man was pronounced dead at the scene.Davis and a passenger in his vehicle, Brandon Pannell, 32, were taken to Grant Medical Center in stable condition. According to police, Davis was processed for impaired driving and blood results are pending testing. Police continue to investigate, but say they are withholding the deceased man’s identity pending notification of his family. Keep checking NBC4i.com for real-time updates on this story. To get alerts for breaking news, grab the free NBC4 News App for iPhone or Android. You can also sign up for email alerts.