The governor of Minnesota said Saturday morning that a group of highly organized “outside agitators” is responsible for much of the mayhem that occurred Friday night in Minneapolis. The Star-Tribune reports:

The struggle to control the mayhem could bring another 1,000 National Guard soldiers into the cities, supplementing a force of 700, already the largest civil policing authority in the state’s history. Law enforcement officials said it would be the first full mobilization of the Guard in Minnesota since World War II.

“Our cities of Minneapolis and St. Paul are under assault,” (Gov. Tim) Walz said, suggesting that a growing number of rioters are coming from outside the city, and possibly outside the state, in what he called “an organized attempt to destabilize civil society.”

The mayor of St. Paul Minnesota said those arrested in his city did not live locally.

Here is what it looked and sounded like last night in Minneapolis:

The governor said he experts more arrest tonight than on Friday night.

To see maps of all the damaged businesses in Minneapolis, see these graphics from the Star-Tribune.