Bus drivers in the Mount Clemens Community School District have walked off the job, leaving about 1,000 students looking for a ride.

Officials tell The Detroit News 31 bus drivers contracted by the Cincinnati-based company First Student began a strike Tuesday over wage issues.

Superintendent Charles Muncatchy tells the Detroit Free Press that schools remain open, but it's an "upsetting" and "disruptive" day.

The district is not directly involved in negotiations with the drivers. The Macomb Daily reports First Student is bringing in 12 drivers from Illinois, Ohio and Michigan to resume bus service on Wednesday.

Teamsters Local 614 vice president Dave Bluhm tells WJBK-TV that drivers are seeking an additional $1.50 per hour. Negotiations are ongoing.