Police investigate stabbing on Detroit's west side

Detroit— A man is in critical condition after he was stabbed on Detroit's west side Thursday evening. 

Detroit police say a preliminary investigation shows two 46-year-old men had an altercation on the 8600 block of Birwood. The victim was stabbed and the other man took off. 

Police say the assailant has a dark complexion and missing teeth. He was wearing a black jacket and blue jeans when he was last seen. Police say he is armed. 

The police urges anyone with information to contact them at 313-596-5240 or Crime Stoppers at 1-800-SPEAK-UP.