Valparaiso Police are investigating a Tuesday morning disturbance during which one of the subjects involved fired a single gunshot but nobody sustained serious injuries, according to a release.

Police were called around 8:15 a.m. April 8 to the area of Garfield and Union streets for a report of a disturbance between two adult men, police said.

The argument began after one of the men was discovered sleeping in a vehicle that did not belong to him, police said. During the altercation, one man fired a weapon at the other.

Both men were transported to the Valparaiso Police Department, where they spoke with investigators.

A Hobart man, 61, was arrested on a preliminary charge of unlawful entry to a motor vehicle and the other man, 58, of Valparaiso, was arrested on initial charges of criminal recklessness and pointing a firearm.

The men are in custody at the Porter County Jail. The Post-Tribune is not naming them because they have not been formally charged.