These amazing pictures from the United States show a wall of dust moving through the city of Phoenix in Arizona. Sandstorms like this happen during the region's monsoon season, which is underway. They occur over desert land and can reach thousands of feet into the air, spurred by strong winds. The dense cloud dramatically reduced visibility, grounding flights at a major airport and leaving thousands without electricity.

In the wake of the Maricopa County Sheriff's Office crackdowns on illegal immigrants throughout the Valley, Phoenix Mayor Phil Gordon is calling on the FBI to investigate whether Sheriff Joe Arpaio has violated any civil-rights laws.

The policy, which prevents such calls in situations where illegal immigrants commit civil traffic violations, has been criticized by advocates for tough border enforcement who said it keeps local authorities on the sidelines in the fight against illegal i

Illegal immigration is the top concern of Phoenix-area voters, according to a new poll by Arizona State University and KAET-TV Channel 8. Twenty-seven percent of the Maricopa County voters surveyed in the November poll said illegal immigration was the reg

A group that supports sanctuary and amnesty for illegal immigrants is backing Phoenix Police Chief Jack Harris on the issue of whether local police should enforce immigration laws. The New Sanctuary Movement -- which has the backing of labor unions and li

Police raided a drop house for illegal immigrants and discovered several, including a pregnant woman, whose handlers had beaten and tortured them, authorities said. Police took 54 people into custody after the raid Friday, including four children and seve