The U.S. government Friday put a $5,000 bounty on the head of so-called "coyotes" - people who smuggle immigrants across the border from Mexico for money.

The Immigration and Naturalization Service stepped up efforts against human smuggling after the bodies of eight Mexicans, believed abandoned without water, were found in the parched desert east of San Diego on Wednesday."These callous smugglers are, indeed, public enemy No. 1," said Johnny Williams, INS Western regional director. "We will do all we can to bring these people to justice."