Opponents of the SB 1070 law protest outside Arizona's capitol. Mexico will challenged the state's policy. Getty images

Mexico filed the challenge in a U.S. federal court saying it was concerned for possible discrimination acts against its citizens.

“Mexicans citizens will have fear to visit Arizona, whether is for work or pleasure. They will be subject to scrutiny and illegal detention by the Arizona police” detailed the brief by the Exterior Relations ministry of Mexico.

The Mexican government urged the US federal court to block the law and declare it unconstitutional. (more…)