A shooter opened fire Wednesday morning during Mass at a Minneapolis Catholic school, killing two children and injuring 17 other people before dying by suicide, officials said.

Police said 14 of the injured were children, with their ages ranging from 6 to 15, and they are all expected to survive. The three adults who were injured are parishioners in their 80s, officials said.

The shooting happened at Annunciation Catholic School, just days after the first day of school on Monday.

“It’s my strongest desire that no state, no community, no school ever experiences a day like this,” Minnesota Gov. Tim Walz said.

The White House said in a social media post that Trump ordered flags at half-staff for all government buildings until sunset on Sunday “as a mark of respect for the victims of the senseless acts of violence.”

**The location**: Minneapolis Police Chief Brian O’Hara said the shooter — armed with a rifle, shotgun and pistol — approached the side of the church and shot through the windows toward the children sitting in the pews during Mass.

The shooter: O’Hara identified the shooter as 23-year-old Robin Westman, adding that Westman had no prior criminal history and is believed to have acted alone, law enforcement reported. O’Hara said authorities are going through online videos attributed to Westman, posted around the time of the shooting. The content has now been taken down.

The school: Founded in 1923, Annunciation Catholic School had 391 students enrolled for the 2023-24 school year, according to the National Center for Education Statistics. The school goes from pre-K to eighth grade.