President Donald Trump’s promised crackdown on illegal immigration has begun to take shape in San Diego County, as federal agents launched targeted operations to arrest undocumented immigrants and a wave of military troops got to work reinforcing U.

As dozens of active-duty military troops arrived along the U.S-Mexico border near San Diego within the past few days, they have become exposed to the environmental hazards many South Bay residents

The California Highway Patrol on Wednesday issued an Amber Alert for two toddlers who were last seen two days ago in Kings County, north of Bakersfield. Jonathan Maldonado Cruz, 23 — who is considered armed and dangerous — is suspected of taking the 2- and 3-year-old girls named Alana and Arya Maldonado,

The Amber Alert included Los Angeles, Orange, San Diego and Riverside counties, with authorities saying the suspect may have fled to Mexico.

A Border Patrol agent pats down one of four men after the group crossed the border illegally through a gap in two walls separating Mexico from the United States before turning themselves in, Thursday,

Authorities searching for a man suspected of killing a woman and abducting their two young daughters issued an Amber Alert in the case Wednesday.

Rain helped firefighters continue to increase containment on a wildfire that burned thousands of acres and forced evacuation orders and warnings north of the U.S.-Mexico border in San Diego County. The blaze,

Planned for this spring, the San Diego County Board of Supervisors approved to convene on a special meeting to discuss about border pollution.

After a night of rain that potentially aided firefighting efforts, the Border 2 Fire was 43% contained by Monday morning.

An additional 1,500 troops have arrived at the U.S.-Mexico border after President Donald Trump declared a national emergency in one of his first official acts.

Officials said the fire, which had spread to more than 500 acres by Thursday night, was miles away from threatening any homes or buildings.

U.S. officials say active duty military troops are arriving in El Paso, Texas, and in San Diego on Thursday evening.