WINNEBAGO COUNTY, WI (WTAQ) - A boating accident in Winnebago County leaves one person critically injured.

Sheriff's deputies say it happend on the Wolf River, near a Fremont campground, around 7 p.m. Sunday.

Two boats slammed into each other, one of the capsized.

One person was critically injured and flown to the hospital. 3 others suffered non-life threatening injuries.

Authorities believe alcohol was a factor in the crash, which remains under investigation.