PHOENIX (AP) - Arizona transportation officials say a motorcycle crash is expected to cause long delays on Interstate 17 in Phoenix.
The Arizona Department of Transportation says drivers traveling north on I-17 from Phoenix will likely experience traffic backup Friday afternoon.
ADOT says the crash led authorities to contain traffic to one northbound lane for a 9-mile stretch north of New River, near the Rock Springs Road exit.
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Officials say one person was critically injured Friday morning and had to be flown to a hospital.
ADOT says motorists should allow extra time for travel or take alternate routes.
The agency did not give a time for when both northbound lanes would reopen.
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