US President Donald Trump has threatened to invoke the rarely used Insurrection Act to quell unrest over federal immigration enforcement operations in Minneapolis, BBC reported. 

He threatened to send in troops following a night of protests and vandalism in the Minnesota city after an agent shot a man in the leg.

The Department of Homeland Security (DHS) said an officer opened fire after he was attacked by three Venezuelan nationals with a shovel and broom handle, according to BBC.