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,

SAN DIEGO ( Border Report) — Smugglers are deploying a new weapon against Border Patrol agents in San Diego: “improvised tire deflation devices.” “They’re bent nails welded together and two-by-fours with nails punctured through them,” said Justin Castrejon, spokesman for the Border Patrol.

One by one, an ICE attorney asked Partida to move the detainees’ cases to courts closer to their new locations. All of the people who were transferred had attorneys in San Diego, including some through a county program that represents people in local immigration custody for free.

Troops are on the ground in San Diego as part of President Donald Trump’s promise to crack down on the situation at the southern border.

Federal agents launched targeted arrest operations while a wave of military troops deployed to the U.S.-Mexico border

ABC 10News crews were on the scene as San Diego authorities, including police, lifeguards, and Border Patrol agents, conducted a perilous rescue operation using rafts to bring the migrants to safety.

AP joined the Border Patrol for six hours in San Diego, the busiest corridor for illegal crossings much of the last year, and found no migrants until the last half-hour.

Mexicali police officers and U.S. Border Patrol agents joined forces to strengthen the region's national security.

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 Pentagon has been scrambling to put in motion Trump’s executive orders signed shortly after he took office on Jan. 20. The first group of 1,600 active duty troops deployed to the border last

In May of 1882, Congress codified these fears into law by passing the Chinese Exclusion Act, which banned Chinese people from immigrating to the United States for 10 years. Officials built a prison on Angel Island in San Francisco to detain arriving Chinese immigrants.