One direction of Randall Road in Sleepy Hollow was shut down early Friday as authorities investigated what they thought might be a rolling meth lab.
Sleepy Hollow officers made a traffic stop at t 2:17 a.m. and determined the driver had a suspended driver's license, Police Chief James Linane said.
Officers found suspicious items in the vehicle as they were preparing to have it towed, he said.
"Because a rolling meth lab can be so dangerous and explosive, we shut the road down to call our local fire department and the Illinois State Police," he said.
"It turned out it was not a meth lab, but it did look like a meth lab."
Initial reports that the road was shut down because of a crash were incorrect.
Linane declined to say exactly what the officers found, citing the ongoing investigation.
The road was shut down for two to three hours, mostly because it took some time for the state police to arrive, he said. "They had to come from some distance," he said.
Staff writer Lee Filas contributed to this report.