Early morning rain and accidents are causing delays on multiple highways in North Texas, officials say.

An 18-wheeler crash and diesel spill have shut down lanes along Interstate 30 at the US-287 ramp in Fort Worth. Fort Worth police said hazmat has been notified. Officials have not said what led to the crash or whether anyone was injured.

A separate crash on I-35W at Spur 280 southbound has four lanes closed, according to the Texas Department of Transportation.

Drivers are urged to drive carefully; delays are possible as cleanup efforts continue.