LODI (CBS13) — A multi-vehicle crash is causing major backups on the northbound lanes of Highway 99 at Peltier Road.

According to Caltrans, the traffic backup is extending approximately five miles to Highway 12 and is expected to worsen as crews work to clear the scene.

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No injuries have been reported in this crash.

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Drivers should expect significant delays and seek alternate routes if possible.

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This is a developing story. Check back for more.