CIUDAD VICTORIA, Mexico—Gunmen aboard a number of vehicles staged attacks in several neighborhoods in the Mexican border city of Reynosa on Saturday, and at least 15 people died in clashes that caused widespread panic, according to local law enforcement. The Tamaulipas state agency coordinating security forces said in a statement that the attacks began in…

CIUDAD VICTORIA, Mexico—Gunmen in vehicles opened fire in the Mexican city of Reynosa on the U.S. border, killing at least 14 people and causing widespread panic, authorities said. Security forces killed four suspects, including one who died near a border bridge. The attacks began Saturday afternoon in several neighborhoods in eastern Reynosa, which borders the…