Calgary police are investigating a stabbing in the community of Hillhurst that left the victim with life-threatening injuries. Police say the incident happened in the 400 block of 14 Street N.W. just before 4 a.m. The victim was taken to hospital in critical condition, but police say their condition has since been upgraded to stable. Anyone with information is asked to call police at 403-266-1234. Tips can also be submitted anonymously through Crime Stoppers.