KALAMAZOO, Mich. (WOOD) — Amtrak announced it is temporarily suspending two trains on the Wolverine route.

Wolverine Service Trains 350 and 355, which normally travel between Chicago and Pontiac with stops in Kalamazoo, Battle Creek, Ann Arbor and Detroit are canceled without alternative transportation.

Amtrak spokesman Marc Magliari said the reasoning is two-fold. First involves a lack of manpower, with the service reporting 4,000 unfilled staff vacancies.

“Some of those folks are people who operate the trains — conductors, engineers or service attendants. But a lot of those folks are also people who work here in our maintenance facility in Chicago and others — whose job it is to maintain the trains,” said Magliari. “So, it’s a combination of not enough people available to work on the trains, but mostly not enough people to work on the trains themselves when they’re here in Chicago or at any of the other endpoints to be operating.”

Another reason is a backlog in routine maintenance and new equipment delivery for the trains themselves.

“Some of this is federally required. We can’t run equipment that is overdue for its routine overhauls or its more dramatic overhauls. We simply can’t operate it,” said Magliari.

With the temporary suspension affecting the earliest eastbound stop and latest westbound train for Kalamazoo, city engineers are disappointed, but considerate.

“It’s especially hard to hire maintenance folks — people who want to do some of the most important work we do … Certainly, we understand that, but we also think that sometimes, it’s a matter of prioritization within organizations. Hopefully, they can work that out,” said Dennis Randolph, Traffic Engineer with the City of Kalamazoo.

Passengers who purchased tickets for trains 350 and 355 are eligible for a refund or can rebook to the other trains on that route.

Amtrak expects the affected trains to resume normal operations on Sept. 17.

The changes will not affect service to Grand Rapids, East Lansing or Port Huron. Blue Water Trains 364 and 365 will serve Wolverine stations in southwestern Michigan.

For updated schedules and information, Amtrak said riders should visit Amtrak.com, use its mobile app, or call 1.800.872.7245.