Trump directs ICE to expand deportations in Democratic-run cities, including Los Angeles

Defense Secretary Pete Hegseth is expected to testify before a House panel on Tuesday, his first time on Capitol Hill since being sworn in five months ago and as questions swirl about the deployment of troops to Los Angeles as part of an immigration crackdown.

During the hearing, Hegseth is widely expected to dodge many of the specifics on the military's spending blueprint, which has not been released, and instead highlight recent gains in recruiting numbers and new technology initiatives in the Army.

But overshadowing much of his testimony will be the Pentagon's decision to send some 4,800 troops, including 700 Marines, to Los Angeles following several days of clashes between protesters and law enforcement there. The troops, known as Task Force 51, are being called under a law known as Title 10, which allows the president to send military forces to protect federal property and personnel.

Several stores in the downtown Los Angeles area were hit by looters as the unrest following days of anti-ICE protests continued overnight, authorities said.

The stores were ransacked, including the Shoe Palace on Main Street, according to the Los Angeles Police Department. Video from the area showed officers tackling a suspected looter.

Suspected looters were arrested overnight in downtown Los Angeles as unrest sparked by anti-ICE protests continued.

Suspected looters also hit many stores on Broadway, including an Adidas store, an Apple Store, two dispensaries, a pharmacy and a jewelry store, police said. It's unclear what was taken.

Authorities said some arrests were made, but additional details were not available.

Buildings and police vehicles were also defaced, authorities said. Buildings were seen with graffiti in about a 10-block radius downtown.

About a dozen buses, presumably filled with deployed Marines, left the Twentynine Palms military base en route to L.A.

They are headed toward L.A., but their final destination is not publicly known.

A statement from the U.S. Northern Command says the Marine infantry battalion will be working with the National Guard troops already deployed to protect "federal personnel and federal property in the greater Los Angeles area."

About a dozen buses, presumably filled with deployed Marines, left the Twentynine Palms military base en route to L.A.

Tensions flared across Los Angeles county Monday evening as protests entered their fourth night.

Immigration raid protesters faced off with law enforcement in Huntington Park and Santa Ana, but the largest protest is underway in downtown Los Angeles where a dispersal order was given and people are getting arrested.

At one point, police said protesters near Temple Street and Los Angeles Street in downtown LA began throwing objects at police and police authorized the use of "less lethal munitions" in response.

Video from AIR7 showed the tense moments protesters confronted authorities.

Immigration protests continued for a fourth night in Los Angeles.

Fireworks were seen going off in the middle of the crowd as they came face to face with officers.

People scattered as a firework was kicked back in their direction by a Los Angeles County sheriff's deputy.

The Los Angeles Police Department formed skirmish lines to hold the protesters back.

Members of the California National Guard were seen standing guard in front of the Edward R. Roybal Federal Building in downtown LA -- the site of protests over the weekend.

Immigration raid protesters faced off with law enforcement in Huntington Park and Santa Ana, but the largest protest is underway in downtown Los Angeles where a dispersal order was given and people are getting arrested.

ABC News contributed to this report.