The Texas Department of Safety has arrested a man in connection with a “credible threat toward state legislators” attending Saturday's protest.

Millions of people turned out for "No Kings" protests nationwide on Saturday that were largely peaceful though there were some arrests and police had to disperse unruly crowds, including in Georgia and Los Angeles.

The largely peaceful protests during the "No Kings Day" demonstration in downtown Los Angeles took an intense turn in the afternoon. Police ordered the crowd to disperse at about 4:15 p.m. PDT near Alameda Street and Temple Avenue, according to the Los Angeles Police Department's Central Division.

On the same day Melissa Hortman and her husband were murdered in a "politically-motivated" assassination, more "politically-motivated" violence occurred at peaceful protests across the country.

The Houston demonstration is one of several planned in the region throughout the day and is expected to draw thousands of protesters.

Saturday marks the first full day of Marines on duty in Los Angeles, one week after protests against Immigration and Customs Enforcement raids ignited in LA and spread to other cities across the U.S.,