WASHINGTON/BOSTON (Reuters) – Computer hackers who previously broke into a U.S. Senate server and brought down the CIA web site struck an Arizona police web site on Thursday, releasing dozens of internal documents over the Internet.

Lulz Security, saying it opposed a tough anti-immigration law in Arizona, said it was releasing documents that related to border control and other law enforcement activities. Its headline was "Chinga La Migra," Spanish for a more profane way of saying "Screw the Immigration Service."

It released about a half a gigabyte of data, including account names, passwords and contact information for several people. Reuters was able to reach two of them to establish that they were accurate.

A scan of the dozens of files released revealed what appeared to be security bulletins from other law enforcement agencies, internal planning documents and even routine reports on traffic incidents.

"We are aware of computer issues," said Steve Harrison, a spokesman for the Arizona Department of Public Safety, "We're looking into it. And of course we're taking additional security safeguards."

The Mexico border state passed a law last year ordering police to check the immigration status of anyone suspected to be in the United States illegally, in a bid to curb illegal immigration and border-related crime.

A majority of Americans supported the measure, but outraged opponents charged it was unconstitutional and would lead to the harassment of Hispanic-Americans, and called for an economic boycott of the desert state.

The most controversial parts of the law were blocked by a federal judge shortly before it came into effect last July, although Arizona is pursuing an appeal.

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http://news.yahoo.com/s/nm/20110624/us_nm/us_cybersecurity_arizona