HOUSTON -- A man was hit and killed by a METRO bus Tuesday night in downtown Houston.

The incident occurred around 6:30 p.m. at Congress Avenue and Milam Street.

Police say the bus hit the man as he was walking, and he died at the scene. Authorities say there were no passengers on the bus.

The driver has worked with METRO for more than 10 years, officials say.

The crash is still under investigation.