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    MEXICO CITY, May 15 (Xinhua) -- Mexico and the United States agreed that a holistic solution was needed for the immigration issue, Mexico's presidential spokesman Ruben Aguilar Valenzuela told media on Monday.

    Mexican President Vicente Fox and his U.S. counterpart, George W. Bush, agreed on many points during their phone conference on Sunday night, Aguilar said.

    The immigration problem could only be solved with a "comprehensive reform" in Bush's words, or a "holistic" reform as described by Fox, and both agreed that the settlement should not purely focus on border vigilance

    The two leaders said that the issue required both sides to work together, Aguilar said.

    About 11 million Mexicans are living in the United States and half of them lack valid documents. Around 400,000 Mexican immigrants cross the 3,200-km-long border with the United States every year to look for jobs. Enditem