Flags at half-staff today after Minnesota church shooting

U.S. flags continue to fly at half-staff across the country today, Aug. 29.

President Trump directed the U.S. flag to fly at half-staff as a mark of respect for the victims of the mass shooting in Minneapolis, Minnesota.

Flags should be flown at half-staff until sunset Aug. 31.

U.S. flags continue to fly at half-staff across the country today, Aug. 29.

Hours after a mass shooting at a Minnesota Catholic school, President Trump ordered across the United States as a mark of respect for the victims of a "senseless acts of violence."

and — 15 of them children — when a shooter fired through the windows of Annunciation Church and school in Minneapolis. Young students were at Mass at the time of the shooting, authorities said.

Here's what you should know.

Why are flags at half-staff again