U.S. Secretary of State John Kerry said on Tuesday the United States is starting an operation with Turkey to finish securing the northern Syrian border, an area that Islamic State militants have used as a lucrative smuggling route.

“The entire border of northern Syria – 75 percent of it has now been shut off. And we are entering an operation with the Turks to shut off the other remaining 98 km (61 miles),” he said in an interview with CNN.

Kerry arrived in Paris on Monday to pay respects to victims of Friday’s militant attacks that killed 129 people. […]