Winnipeg police have created a national tip line to help with their investigation of accused serial killer Shawn Lamb.

On June 25 Lamb was charged with three counts of second degree murder in the killings of 31-year-old Tanya Nepinak, 25-year-old Carolyn Sinclair and 18-year-old Lorna Blacksmith.

The homicide unit is still investigating the case and said they’ve created the special tip line to help them further their investigation.

Police are asking anyone in Canada who may have information to contact police at 1-855-817-4949.

Police said anyone with information can also contact Crime Stoppers at 786-8477.