KYIV, Ukraine (AP) — Ukrainian authorities say that Russian troops have hit port infrastructure in southern Ukraine with Shahed drones near the border with NATO member Romania. Officials said Wednesday that the strikes damaged a grain elevator and caused a fire at facilities that transport the country’s crucial grain exports. Russia has hammered Ukraine’s ports with strikes since leaving a deal that allowed Ukraine to export grain to world markets through the city of Odesa. Russian forces have fired dozens of drones and missiles since July 1 at the port of Odesa and the region’s river ports which are being used as alternative routes.