The SIU says two men involved in a rollover while under Ottawa police investigation last month weren't as badly hurt as first believed and it will no longer be involved in the investigation.

According to the Special Investigations Unit (SIU), officers with the Ottawa Police Service began investigating a vehicle near Cyrville Road and St. Laurent Boulevard at around 2 p.m. June 12.

About 20 minutes later, the vehicle was heading north on the Vanier Parkway when it slid into a ditch and rolled near Beechwood Avenue.

The 24-year-old driver and his 23-year-old passenger were injured, the SIU said, but in a news release issued Thursday it said they weren't as seriously injured as it first believed.

Since the SIU investigates cases involving police where there has been a serious injury, death or allegations of sexual assault, it said the case is no longer in its jurisdiction and it's no longer involved.