LOS ANGELES (KTLA) — Several downtown Los Angeles businesses were looted and vandalized overnight as law enforcement worked to restore order following a weekend of immigration protests that turned violent.

The crowds had mostly dispersed as of Monday morning, but streets are closed, and a heavy law enforcement presence is in place around several downtown federal buildings, where National Guard troops have been posted.

Graffiti could be seen on business after business, including the Los Angeles Times building, for several blocks.