1 lane remains closed near Montrose, Georgia

One westbound lane of Interstate 16 in central Georgia remains closed Thursday morning, a day after four people were killed and nine others were injured in a fiery pileup.The chain-reaction accidents around 8:10 a.m. Wednesday involved more than two dozen vehicles. The interstate runs between Macon and Savannah.A trooper was out all night checking for lingering smoke from controlled burns in the area, Georgia State Patrol operator Terri Graffagnino told The Telegraph newspaper of Macon. The trooper has been patrolling overnight from mile markers 36 to 54, where fog routinely gets thick, she said. Dense fog was reported Wednesday morning in the region, where visibility was only a quarter-mile or less, meteorologists said.Motorists also reported smoke across the highway, Georgia State Patrol Capt. Kirk McGlamery said. The Georgia Forestry Commission issued a permit Tuesday morning for underbrush to be burned on 75 acres in Montrose, just north of the interstate.