(Wisconsin, USA) Authorities in Clintonville say they're looking into unexplained noises and shaking felt around they city Sunday night and early Monday morning.

Police say around 9:30 Sunday night, people started reporting explosion-like sounds shaking their homes.

Police officers say the sounds are like loud bangs with shaking.

The reports were concentrated in the northeast part of Clintonville.

The most calls came in just before 3:00 a.m., but city administrator Lisa Kuss tells Action 2 News the noises then tapered off, and the last report was at 5:30 a.m.

Officials say they've checked the underground water and gas lines. But nothing unusual has been found. Water pressure is normal and no natural gas has been detected.

No damage has been reported, and no one was evacuated.

Clintonville is in the northeast part of Waupaca County.

We have a crew in Clintonville and we'll bring you more details as they become available.