A tractor-trailer fire on I-75 South near Acworth and the ensuing cleanup caused significant traffic delays early Friday morning in Cherokee County.

The incident began shortly after midnight near Ga. 92, according to the Georgia Department of Transportation. The fire completely shut down I-75 South for hours, according to the Cherokee sheriff’s office. The fire was extinguished around 2:30 a.m. and one lane was reopened shortly after. One right lane remained closed into the morning commute.

No injuries were reported, the sheriff’s office said.

Officials have not said what caused the fire.