A female swimmer who was at Crystal Lake Thursday morning told police a man exposed himself to her when she was wading in the water at Cronin's Cove. 

According to Newton Police reports, the girl was in the water when an older, heavy-set man kept trying to get her attention. The man was described as being between the age of 50-70 and had a large, crooked nose, grey hair as well as a Russian accent.

The female told police she kept ignoring the man despite his repeated attempts to talk to her.

However, when the girl went over to sit on the dock, the man approached her to ask her if an item in his hand "looked like a dentist tool." When the girl looked down, she saw that the man's penis was outside his bathing suit and erect, reports said.

The girl said she screamed, telling the man to leave her alone, and left the lake. 

Newton Police are still investigating this incident and anyone with any information can call the department at 617-796-2100 or the anonymous tips line at 617-796-2121.