Four fans attending Monday's game between the Oakland Athletics and Toronto Blue Jays at RingCentral Coliseum in Oakland, California, suffered non-life-threatening injuries after getting hit by bullet fragments from "celebratory gunfire" outside the stadium.
According to the Associated Press (h/t ESPN), the injuries occurred after the game as fans from the crowd of 24,403 gathered on the field for a Fourth of July fireworks show.
A's manager Mark Kotsay commented on the incident, saying:
"I think if it wasn't Fourth of July, it would be more alarming. Any time during Fourth of July, I can remember this growing up, it's never safe but people tend to do things that aren't in the ordinary.