Four people were shot outside of Nationals Park, a professional baseball stadium in the District of Columbia, on Saturday night, police said.

The district’s Metropolitan Police Department had earlier said on Twitter that two people where shot outside of Nationals Park.

It later said in a follow-up tweet that “two additional victims associated with the incident walked into area hospitals for treatment of gunshot wounds.”

A baseball game that had been in progress between the Washington Nationals and the San Diego Padres was suspended as a result of the shooting.

Play is expected to resume on Sunday.