HONOLULU -- Police are investigating a claim that Mike Tyson assaulted a woman while in Hawaii attending the Pro Bowl.

A 38-year-old woman, whose identity was not released, reported she was struck Saturday as she was forced aside by Tyson when she "ran up to talk to him" at Aloha Stadium, Honolulu police spokeswoman Jean Motoyama said Monday.

The woman reported the alleged assault at 9:15 p.m., several hours after the game was completed, Motoyama said.

Responding officers reported not seeing any visible injuries on the woman, Motoyama said.

A misdemeanor third-degree assault case was opened, but none of the woman's claims have been substantiated, police said.

Tyson's representatives told police the former heavyweight champion was at the game, but stayed only 10-to-15 minutes because of the attention he was drawing.

Tyson adviser Shelly Finkel said Monday night he had not heard anything about the alleged assault.