ST. LOUIS (AP) — Police said Wednesday they were investigating after a woman attending a St. Louis Cardinals baseball game was grazed in the arm by a stray bullet that apparently originated outside Busch Stadium.

The 34-year-old victim was inside the ballpark Tuesday during the game against the Milwaukee Brewers when she felt pain in her arm. She went to a first-aid station for treatment and a bullet was later found near her seat. She had an abrasion on one of her elbows.

Todd Porter, 54, of O'Fallon, Illinois, was at the game with his son and said he was seated in front of the victim.

"Wow, I...