A man is dead after crashing his motorcycle into a semi truck in the 5100 block of south Broadway at about 12:30 Sunday afternoon. 

Police say the truck was stopped with it's emergency flashers on while the driver was looking for directions to where he was going. 

Traffic on Broadway was blocked from 47th to 55th Street for several hours while emergency crews cleaned up the scene. 

Authorities have identified the victim as 47 year-old Timothy Brown. They say he was not wearing a helmet.

The investigation continues as to what caused the man to run into the truck.