A serious collision that closed Highway 35 on Friday sent eight people – young and old – to hospital. The Special Investigations Unit (SIU) has released a preliminary statement about the Kawartha Lakes crash that involved an Ontario Provincial Police (OPP) cruiser. SIU states: The SIU has assigned four investigators, two forensic investigators and a collision reconstructionist on the case. It is also urging anyone with information, including video or photos, to contact the lead investigator at 1-800-787-8529 or online.