Three people were injured, two in critical condition, in a shooting Monday afternoon at a charter school near downtown Des Moines, Iowa, authorities said.

Police officers «have multiple potential suspects in custody,» according toDes Moines police statement.

Senator Chuck Grassley said on social media who was monitoring reports of a shooting at a Des Moines charter school.

The Iowa shooting comes in the wake of other troubling shooting incidents across the United States. Eleven people were killed at a dance studio in Monterey Park, California, on Saturday night and 12 people were shot inside a bar in Baton Rouge, Louisiana, early Sunday morning.

This is a developing story. Update here for updates.