A tourist from Cincinnati intervened Tuesday in the sexual attack of a 19-year-old woman, pursuing the attacker until police could detain the 23-year-old man.

Salt Lake City police said the woman was walking near 400 South and State Street at about 11:30 a.m. when a man reached under her skirt and grabbed her buttocks.The man was going to run away, but the Ohioan chased him, resulting in his apprehension.