
Authorities in the US state of Texas have advised American citizens not travel to Mexico during the spring break holidays for security reasons.
The Texas Department of Public Safety (DPS) said that drug cartel violence represented a significant threat for anyone crossing into Mexico.
It comes after four Americans were kidnapped shortly after crossing the border last week.
Two of them were murdered, while two were released unharmed.











The North American Leaders’ Summit has grown larger and more formal since the original “Three Amigos” get-together then-U.S. president George W. Bush hosted in Texas in 2005.