Three grenades exploded in Nuevo Laredo, Mexico, just outside the U.S. Consulate, rattling the neighborhood but causing no injuries, officials said.
The grenades apparently were used in a fight Thursday between members of the Zetas drug cartel and the Gulf cartel, which is trying to reclaim the territory, The Dallas Morning News reported.
Fighting between the two groups, one-time allies, has left a string of burned-out homes and bodies. Sources told the Morning News seven people have been killed in recent days, including three Americans.
Nuevo Laredo, an entry into Texas via Interstate 35, is known as the Zetas' headquarters.
The Morning News said the Gulf cartel is believed to be backed by the Sinaloa crime organization as it tries to eliminate the Zetas and control the profitable drug route into the United States.
"Things will only heat up," one person, speaking anonymously, told the newspaper. "This thing goes in waves, and we're about to see a huge wave."
Most Popular Stories
- SEO Traffic Lab Celebrate Wins at Digital Marketing Event 'Internet World 2013' in London
- Social Media Initiatives Should Follow Customers' Lead
- Apple CEO: Offshore Units Not a 'Tax Gimmick'
- U.S. Senate Accuses Apple of Large-scale Tax Avoidance
- UTEP Water Recycling Project Wins Venture Titles
- Marketo Makes a Mint in IPO: Stock Shoots Up More than 50 Percent
- Bieber Booed at Billboard Awards
- Crude Oil Up, Gasoline Down
- Austin Startup Compare Metrics Raises $3.5 Million for Expansion
- Why So Many Top 'Car Guys' Are Actually Women