The suspect fled the scene after the attack. The girl then ran home and told her parents about the attack.
Officers searched the area but didn't find the man, who was described as a Hispanic in his early 20s, about 5 foot 8 inches, 170 pounds, with a shaved head and an earring in his right ear. He was wearing a black shirt and black shorts at the time of the attack.
Anyone with information on the suspect is urged to call Corona police at (951) 817-5837.
City News Service contributed to this story.