A night after unrest led to damage and looting of Minneapolis businesses, a curfew helped keep relative calm.
The curfew went into effect at 8:00 p.m. Thursday in both Minneapolis and St. Paul.
Minneapolis police report 30 arrests in the first hour of the curfew, while police in St. Paul have reported no arrests.
Rioter broke windows, burned buildings, and stole cash and merchandise from about 40 businesses along Nicollet Avenue and near Loring Park on Wednesday in reaction to false reports of another deadly police shooting in Minnesota's largest city.
On Wednesday, security videotape posted on the Minneapolis Police Department Twitter page showed a homicide suspect shooting himself to death in downtown Minneapolis.
Police say they did this in an effort to restore calm, but it wasn't enough to stop the violence from continuing into the early hours of Thursday morning.
Gov. Walz called in about 300 National Guard troops and 250 state patrol officers to back up local law enforcement.
"Our certain concern, as it always is, is safety and security and bringing peace to the city," he said during a Thursday afternoon news conference.
The governor spent much of Thursday calling Black community leaders to ensure conversations continue about equity and public safety.
"It cannot happen when violence is prevailing, it cannot happen when our cities do not feel safe, it cannot happen when businesses are targeted," said Walz.