Multiple people were injured Wednesday morning when a person opened fire on Republican lawmakers practicing in Alexandria, Virginia, for a charity baseball game.

Police were called just after 7 a.m. to reports of a shooting at Eugene Simpson Stadium Park, where the Republican Baseball Team was practicing.

Alexandria police Chief Michael Brown said officers, who were on the scene within three minutes of getting the call, were met with gunfire when they arrived. They returned fire.

At least five people were taken from the scene to local hospitals after the attack, including Zack Barth, a legislative correspondent for Republican Baseball Team coach Rep. Roger Williams, and House Majority Whip Steve Scalise.

Witnesses said they heard more than 50 shots fired during the incident, WUSA reported.