Waukesha man accused of sexually assaulting co-workers at Superior Crane

WAUKESHA, Wis. (CBS 58) -- The son of the owner of 'Superior Crane' in Waukesha has been charged with sexually assaulting co-workers and exposing himself at work.

According to a criminal complaint, 28-year-old Nathan Sharp touched employees while they were working on machinery.

Four different victims have alleged that Sharp was inappropriate with them. The sexual assaults started as early as last year and continued through recent months.

Sharp made his initial court appearance on Monday and pleaded "not guilty."

A hearing is set for June 25.

A signature cash bond was set at $5,000.