US-Mexico border tightened on drug cartel warning

http://ap.google.com/article/ALeqM5infd8TJIoEyvwbCV9Rux02yjzplAD92PJAIO0

EL PASO, Texas (AP) — Security is being heightened along the southern U.S. border because of a threat that warring Mexican cartels may send hit men into the United States, authorities said Monday.

Law enforcement officials would not discuss specific security measures being taken at the ports of entry, along the border or in the city of El Paso.

"We received credible information that drug cartels in Mexico have given permission to hit targets on the U.S. side of the border," El Paso police spokesman Officer Chris Mears said.

Authorities learned of the threat last week.