GRAND RAPIDS, Mich. – Police say an FBI agent has been arrested in western Michigan after firing his gun at a police officer outside a fitness club reported Fox News. But this story has more questions than answers.

Officers in Grand Rapids responded to 911 calls regarding a man brandishing a firearm inside the Planet Fitness around 1:20 a.m. Tuesday morning. A police sergeant attempted contact with the man, who then opened fire.

Police confirmed the 35-year-old man fired his weapon. No one was injured, and police did not return fire. The man was quickly arrested, but his name has not been released.

Police say they’ve notified the FBI in Detroit. WZZM13 published the following statement Tuesday afternoon:

The FBI takes allegations of misconduct very seriously. We are aware of the matter involving the recent arrest of an FBI Special Agent and are fully cooperating with the Grand Rapids Police Department. This matter has been referred to the FBI’s Internal Investigations Section in Washington, DC, as well as the Department of Justice’s Office of Inspector General. Because this is an ongoing investigation, we will not comment further.

Planet Fitness also responded:

We can confirm the isolated incident that took place early this morning at the Planet Fitness location in Grand Rapids. We can also confirm that no shots were fired inside the club, and that no one was injured. The suspect is currently in custody and we are grateful for the local authorities’ swift action and response. As this is an ongoing investigation, any further inquiries should be directed to the Grand Rapids Police Department.