Police said two of the arrests were for felonies, one was for a misdemeanour and 25 were for municipal citations. Police said some of the people arrested were blocking traffic, others had tried to start fires, and one person had materials to start a fire, including lighter fluid.

Alvin Cole's mother and sisters were arrested during protests that were sparked after charges were not laid against the officer who shot Cole.

The district attorney said Wauwatosa Officer Joseph Mensah used reasonable force when he fatally shot 17-year-old Alvin Cole outside a shopping mall on Feb. 2.