Icy roads caused both wrecks and school delays in north Alabama on Wednesday before temperatures rose above freezing.

News outlets reported multiple crashes on elevated roads and overpasses near Huntsville, including Interstates 565 and 65.

No serious injuries were reported, but traffic was slow in areas.

Meanwhile, at least two dozen school systems opened two hours late as a precaution to give time for icy patches to thaw. A few government offices and businesses also delayed opening.

Temperatures fell into the 20s overnight after a thin layer of snow covered parts of the Tennessee Valley on Tuesday.

Daytime highs in the upper 40s should melt any remaining ice, forecasters said.