Naked jogger stays step ahead...

(CBS/AP) SPRINGFIELD, Mass. - A central Massacshuetts man is giving new meaning to the phrase "fitness buff."

Police have received several reports of a man jogging nude through a Springfield city neighborhood, but so far have been able to locate him. (He's naked, right?)

The most recent reports came at about 6:30 a.m. Wednesday when several people called to report the au naturel runner.

However, police responding to the scene couldn't find the man.

Sgt. John Delaney says there have been prior reports of a man running without clothes through the same neighborhood at about the same time of day.

He is described as a white man in his 30s (oh, and did we mention he's naked?).

Police say if apprehended, he faces charges of open and gross lewdness and indecent exposure.