Driver killed in semi‑truck crash that shut down U.S. 75 in Collin County, authorities say

A fatal crash involving a semi‑truck shut down parts of U.S. 75 in Collin County on Wednesday afternoon, according to the Anna Police Department.

Police said the semi‑truck had been traveling north on U.S. 75 near Rosamond Parkway when it crashed around 3 p.m. 

The driver was pronounced dead at the scene. No other vehicles were involved. Authorities withheld the driver's name while notifying relatives.

Investigators were still working to determine what caused the truck to crash.

Highway closures caused major delays

The wreck brought traffic to a standstill in both directions. Northbound drivers were diverted at Rosamond Parkway, while southbound traffic was routed off at Exit 48B. 

Police urged motorists to avoid the area as emergency crews cleared the scene, warning that delays would continue into the evening.

Anna is about 45 miles north of Dallas.

CBS News Texas will provide updates as more information becomes available.