Stricter U.S. gun measures are needed to stem the flow of guns to Mexico, where the weapons are fueling violence and leaving people “under siege” with little hope of help from their government, activists said Thursday.

A National Park Service recommendation could bring federal designation to the building near downtown where farm labor leader César Chávez is said to have first uttered “Sí se puede.”

Tucson's police chief says officers were following the law during a traffic stop of two immigrants that turned into a heated protest.

The director of Immigration and Customs Enforcement on Tuesday defended his agency’s decision to release more than 2,000 illegal immigrants last month, saying it was necessary to keep the agency within its budget.

A Douglas woman who works for a federal immigration agency has been accused of using her home to stash illegal immigrants being smuggled into the U.S.

The government says apprehensions of people for federal immigration violations have dropped to the lowest level in 40 years, reflecting a decline in the northbound traffic of illegal immigrants from Mexico.

WASHINGTON – A year after federal officials announced a program of “prosecutorial discretion” aimed at reducing nearly 300,000 pending immigration cases, only 1.5 percent of the backlogged cases have been closed. The Immigration and Customs Enforcement policy allows prosecutors to ...

A federal appeals court has taken what some attorneys called the unprecedented step of demanding to know if the government plans to prosecute seven illegal immigrants who have no other criminal record.

The Obama administration said Thursday it will allow many illegal immigrants facing deportation the chance to stay in this country and apply for a work permit, while focusing on removing from the U.S. convicted criminals and those who might be a national security or public safety threat.

Immigration experts from around the country have been asked to offer guidance on the policies being drafted to help Arizona's police agencies properly enforce the state's new immigration law - a process those experts say is even more important than the drafting of the law.