LARCHMONT - It's Autism Awareness Month and a couple of Westchester communities lit up the night sky in a very special way.

The clock tower at Yonkers City Hall and the Larchmont Public Library were lit up in blue last night to highlight autism as a growing global health crisis.

Autism is considered the fastest growing serious developmental disability in the U.S.

Last week, the Center for Disease Control came out with new numbers saying autism now affects one in 68 children, which is a 30 percent jump from two years ago. There is no known cause or cure.