Willimantic police are investigating reported gunfire early Sunday morning.
Police received multiple 911 calls reporting shots fired on Mansfield Avenue at about 3 a.m.
Responding officers found bullet shell casings on the road, but didn't discover any injured parties or property damage.
Mansfield Avenue was closed for several hours as police combed the area for evidence, but the road has since reopened. A K-9 unit searched the area.
Police haven't identified suspects at this time.
Willimantic police ask anyone with information to call Det. Christopher Rood at the department. All tips will remain confidential.