Seth Altman, 33, who was last seen in Memphis, Texas, around 80 miles south of Amarillo. He is sought in connection with the injury of a law enforcement officer.

Recipients of the blue alert were warned to look out for 6-foot-2 Seth Altman, but told not to approach him and instead call the authorities. The system is designed to warn residents of potential public safety issues, including the more common AMBER Alerts or Silver Alerts for missing people.

Texans’ cellphones lit up around 4:50 a.m. with an emergency notification as authorities search for a man accused of shooting a police chief.

Residents in North Texas and across the state got an early start to their day Friday because of a blunder with the Blue Alert system.

Blue alerts are one of several public safety alerts issued by the state when authorities need help finding someone.

Hall County, 4 and a half hours northwest of Dallas. We’re told a deputy there was injured by a 33-year-old white man, 6-foot-2, 220-pounds.