LINCOLNVILLE, Maine (NEWS CENTER) -- Police are asking for the public's help in finding a man who allegedly assaulted a woman after causing her to become unconscious.

Lincolnville police say a woman reported that a man came into her business where she was working alone on October 1. The woman told police the man approached the counter and then blew a powder substance in her face which caused her to become unconscious.

Police say the man is described as older, around 6'0" to 6'2", weighing around 200 lbs with wavy hair.

Detectives from Waldo County Sheriff's Office, State Police and Maine Drug Enforcement Agency have been investigating.

If you have information you are urged to call Waldo County Sheriff's Office at 338-2040