PHOENIX (AZFamily) — A serious crash has closed a portion of State Route 74 in north Phoenix.

Around 7:30 p.m. on Saturday, the Arizona Department of Transportation responded to a crash on SR 74 at milepost 29 , about a mile from southbound Interstate 17. It is unclear how many cars were involved or if anyone was seriously hurt.

Traffic is blocked for approximately seven miles in both directions. Drivers are advised to take an alternate route. There is no estimated time when the highway will reopen.

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