Toronto police have identified a man who was fatally shot in a Scarborough apartment building Friday night.

Police say 23-year-old Lorenzo Martinez is the city's 10th homicide victim of 2011.

Martinez was gunned down in the lobby of an apartment block at 70 Stevenvale Dr., near Lawrence Avenue and Markham Road, shortly before 8 p.m.

No arrests have been made, and no details have been released on suspect(s).

Anyone with information about the murder is asked to call police at 416-808-7400 or Crime Stoppers anonymously at 416-222-8477.