Police in Chicago believe the bullets that injured two fans at a White Sox game Friday were fired from inside the ballpark.

Authorities have “almost completely dispelled” the theory that stray bullets entered the stands at Guaranteed Rate Field from the outside, interim police superintendent Fred Waller said Monday.

“We’re still looking at every avenue,” Waller told reporters. “It’s still under investigation. Something from inside, it could’ve happened that way. We’re looking at every avenue, exploring every lead and everything that we can get.”

A police report obtained by The Athletic said Chicago’s chief of police requested the White Sox suspend their game against the visiting Oakland Athletics after the gunshots. Instead, the game continued to completion but a postgame Vanilla Ice concert was canceled.

“We made that request initially because we did not know what was going on,” Waller said. “We had reports of people being shot at Sox Park, but that wasn’t confirmed and so we allowed the game to continue (and) not to create a panic.”

According to police, a 42-year-old woman received a gunshot wound to the leg, and a bullet also grazed a 26-year-old woman in her abdomen. Neither the White Sox nor the police have provided further updates since Saturday morning.

As the investigation continues, it is not clear how a gun would have made it past security into the ballpark.

–Field Level Media