'No Kings' protests: Tensions rise in LA as crowd hurls concrete, police allege

Texas Gov. Greg Abbott said he was deploying the Texas National Guard to multiple locations across the state to "ensure peace and order."

The deployment comes ahead of planned protests this week in Texas, including one in San Antonio.

A statement from Abbott's office obtained by ABC News' affiliate KSAT confirmed the deployment, saying Guardsmen were ready to "uphold law and order across our state."

Two hours into the curfew that was set in place for some parts of downtown Los Angeles, the crowd seemed to disperse, but some remaining protesters were seen getting arrested.

Hundred of Los Angeles Police Department officers were on hand along with other law enforcement agencies to enforce the curfew and make arrests.

Mass arrests were initiated as multiple groups continued to gather on 1st Street between Spring and Alameda, according to the LAPD.

Several people were taken into custody in an area of downtown Los Angeles where protests continued amid an overnight curfew.

There is an exemption for those who live or work in the area. Those who have no reason to be there are subject to arrest and prosecution.

President Donald Trump and his administration officials warned that the use of the military in response to protests against his immigration crackdown may not be limited to just Los Angeles, saying it could be the first "of many" -- and that protesters could be met with "equal or greater force."

Trump told reporters in the Oval Office on Tuesday that his administration was going to enforce its deportation policy strictly and that it would not tolerate violent protests against ICE officers.

"This is the first, perhaps, of many," Trump said of the deployment of 4,000 National Guardsmen and 700 Marines to Los Angeles as demonstrators clash with law enforcement amid the protests.

Demonstrators have clashed with law enforcement sporadically for days, and Trump called in the National Guard, against Gov. Gavin Newsom's wishes, in an attempt to quell the violence and allow immigration enforcement to continue.

California Gov. Gavin Newsom said President Donald Trump is "pulling a military dragnet" across Los Angeles during a brief public address on Tuesday.

The Democratic governor's remarks come after Trump ordered the deployment of nearly 5,000 troops, including National Guard and Marines, to the nation's second-largest city. They were deployed to protect federal buildings but are now also protecting immigration agents as they carry out arrests.

Newsom said Trump's immigration crackdown has gone well beyond arresting criminals and that "dishwashers, gardeners, day laborers and seamstresses" are among those being detained.

He said Trump's decision to deploy the California National Guard without his support should be a warning to other states.

"California may be first - but it clearly won't end here," Newsom said.