A deadly 18-wheeler crash blocked traffic on I-45, north of Conroe, for over 4 hours. The accident involved five vehicles, including a FedEx 18-wheeler truck. No details on who died in the crash or on any other injuries have been released.

The accident happened today on 1-45 at FM 830 at around 5:24 am, according to Houston TranStar. Authorities say a car struck the rear end of a FedEx truck. This caused the FedEx truck to lose control and flip onto its side. Three other vehicles crashed into the 18-wheeler in a chain reaction.

The accident blocked all lanes throughout the peak of rush hour. Traffic was backed up for miles. The freeway finally reopened shortly after 10 am.

Image courtesy of khou.com.