SAN ANTONIO — Emergency crews are at the scene of an overturned 18-wheeler along IH-10 near FM 1518.
According to an official with SAFD, the 18-wheeler is leaking diesel and toulene.
it is unclear what caused the accident at this time.
Both the east and westbound lanes of IH-10 near Graytown Road will be shut down for approximately six hours as crews continue to work the scene.
Drivers are advised to use an alternate route.