The SIU is investigating an arrest in St. Catharines, at the Walmart on Vansickle Road.
NRP officers responded to a report of an unwanted man in the parking lot, early Sunday afternoon.
The SIU says there was an interaction close to a U-Haul box van.
The man was arrested and he was taken to hospital with a serious injury afterwards.
Anyone who may have witnessed this incident should contact the Special Investigations Unit by calling 1-800-787-8529.
2 Niagara men arrested by Toronto Police
Accessed rooftop to take pics for social media
Niagara Parks Tree Planting Day - Sat. Oct. 24
The free event takes place from 10AM-Noon
Gov't Wastes Too Much Money: Candidate
Gov't Pressured to Investigate Whale Deaths
Niagara Falls MPP is asking the government
Niagara Falls Receives Payment for Casinos
OLG pays for hosting 2 casinos
Niagara Falls Man Charged with Child Porn
The investigation began in August
Toronto Man Charged with Drug Trafficking
Respecting Taxpayers, Douglas Memorial Candidate's Concerns