The Chattanooga Police Department and Tennessee Highway Patrol are looking into how a tractor-trailer crashed on Signal Mountain Road below the Space House on Saturday.

Bruce Garman, a spokesman for the Chattanooga Fire Department, said there weren't any injuries, but the road is temporarily closed while crews cleanup the wreck.

TDOT expects that portion of the road to reopen at 11 p.m. Until then, drivers are urged to find an alternate route.