DEVELOPING: A suspect in the Phoenix-area highway shootings has been caught, Arizona’s governor announced late Friday night.

Gov. Doug Ducey said the suspect was apprehended Friday night and is in the custody of the state’s Department of Public Safety. A man was taken into custody around 7 p.m. at a Wal-Mart in Glendale, a suburb west of Phoenix, a spokesman for the governor said.

Department of Safety spokesman Bart Graves confirmed that an arrest was made but decline to provide any details. A news conference was scheduled for late Friday.

Since Aug. 29, there have been 11 confirmed shootings of vehicles in the Phoenix area involving bullets or other projectiles. Most of the shootings occurred along a stretch of Interstate 10, a major route through the city. There hasn’t been a confirmed shooting since Sept. 10.

Though there have been no serious injuries, a 13-year-old girl’s ear was cut after a bullet shattered a window of a vehicle she was riding in.

The shootings have kept the city on edge and prompted several school districts to keep their buses off freeways and even altered some motorists’ commutes to avoid I-10.

Authorities have offered a $50,000 reward for information leading to an arrest and conviction in the case and also distributed thousands of fliers in communities along the freeway to raise awareness about the shootings and the reward.

The Arizona Department of Public Safety said state troopers have stepped up patrols, while other agencies assisting in the investigation have included Phoenix, Tempe and Mesa police as well as the FBI and the federal Bureau of Alcohol, Tobacco, Firearms and Explosives.

"I think it's fair to say since a week ago, we've made headway in this case," Graves said earlier Friday.

Meanwhile Friday, a judge ordered the release of a 19-year-old man who was detained at a convenience store Sept. 11 and questioned regarding the shootings. Authorities have declined to explain why the man was questioned about the shootings but have said he was not a prime suspect.

He was arrested on an alleged probation violation stemming from marijuana found in the man's house during a Sept. 11 search based on a tip that he was violating probation by possessing a gun. The man had been sentenced to probation on an endangerment conviction for excessive speeding and fleeing from police.

The Associated Press contributed to this report.