Protests live updates: Marines make 1st temporary detention in LA

Demonstrations protesting the Trump administration's immigration enforcement operations took place in cities across the U.S. on Wednesday, including San Antonio, Texas.

Demonstrations in Texas' second-largest city remained peaceful. Large crowds gathered downtown and marched near City Hall, away from the historic Alamo, where Texas State Troopers and Texas National Guardsmen were staged.

A small group of demonstrators was seen near the Spanish Mission but eventually joined the bigger crowd at City Hall.

San Antonio police closed streets during the march.

-ABC News' Mireya Villareal and James Scholz

For the second night, a curfew is in effect for part of downtown Los Angeles that has been the site of protests and marches that have seen some clashes with authorities.

The curfew lasts until 6 a.m. local time.

LA Mayor Karen Bass said the nightly curfew, which first went into Tuesday, would likely remain in effect for multiple nights.

About a half hour before the curfew went into effect on Wednesday, the Los Angeles Police Department said a large demonstration at Grand Park in front of LA City Hall had splintered and was blocking streets in the Civic Center area.

Earlier, police said some protesters in a demonstration marching on Hill Street in downtown LA were throwing fireworks and rocks at officers.

Several people protesting ICE detentions were arrested in downtown Manhattan on Wednesday. Officers began detaining people after the protest, which started in Foley Square near City Hall, began moving down Broadway before being stopped by police at the intersection of Broadway and Duane.

The arrests appeared to take place after protesters did not clear a crosswalk when ordered to by police.

Hundreds of protesters remain in the area, chanting behind barriers, with dozens of officers standing by.

-ABC News' Will McDuffie

An immigrant in Los Angeles has been charged with one count of assault of a federal employee for allegedly spitting on an Immigration and Customs Enforcement officer.

The Department of Justice announced on Wednesday that the suspect, Omar Pulido Bastida, 41, faces a statutory maximum sentence of eight years in federal prison for the alleged crime.

The incident happened earlier this week when the officer was executing a warrant for Bastida's arrest, according to the DOJ. Bastida allegedly spat at the officer through an iron security gate on his door.

ICE officials eventually forced entry into the residence and arrested Bastida.

"This defendant found out the hard way: When you spit, we hit – with a felony charge," said United States Attorney Bill Essayli. "Law enforcement officers risk their lives and safety to uphold the law. To treat them with disrespect, like this defendant did, mocks our great nation and such behavior will be punished accordingly."