A big rig carrying dog food overturned Monday morning causing rough traffic through the Newhall Pass.

Around 5:15 a.m. Monday, first responders received reports of a traffic collision involving a big rig carrying dog food on the southbound 5 Freeway near the 210 Freeway, according to Caltrans officials.

The big rig was carrying around 75,000 pounds of dog food which needs to be off-loaded, according to officials.

The crash has closed the southbound 5 Freeway connector to the eastbound 210 Freeway, the southbound 5 Freeway truck route connector to the 14 Freeway and the southbound 14 Freeway truck route to the southbound 5 Freeway.

The crash caused rough traffic through the Newhall Pass as crews worked to off-load the dog food and upright the truck.

It is unknown how long lanes will be blocked, according to officials.

Ed. Note: This is a breaking news story, more information will be added as it becomes available.

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