Northbound traffic along Interstate 19 near Tubac is being detoured Friday morning as officers investigate a fatal crash that occurred late Thursday night.

The lanes will be closed from about 9 to 11 a.m. between Tubac and Chavez roads about 20 miles north of Nogales, Garin Groff, spokesman for 
the Arizona Department of Transportation, said in a news release.

Drivers will be diverted onto the frontage road. Delays are expected. Southbound lanes are unaffected and remain open.

For the most current information about highway closures and restrictions statewide, go to ADOT’s Travel Information Site at or call 511.