The weeds have 'run riot' over our poor garden. [=the weeds in our garden have grown quickly and have taken over the garden]
The field was a 'riot' of wildflowers. [=the field was filled with many kinds of wildflowers]
The news about the election caused/started/sparked a 'riot' in the city.
(..) in the goddamn morning? Hal, it's us. It's Paul and Brutal. - It's us. - Jesus. It isn't a lockdown, is it? Or a riot? No. Hal, for God's sakes, just take your finger off the trigger. Are you hostages? Who's out there? - Who's by that truck? (..)1999 The Green Mile