China on Monday announced export controls on some drones and drone-related equipment, saying it wanted to safeguard "national security and interests" amid escalating tension with the United States over access to technology. The restrictions on equipment, including some drone engines, lasers, communication equipment and anti-drone systems, will take effect on Sept. 1, the commerce ministry said. The controls also affect some consumer drones, and no civilian drones can be exported for military purposes, a ministry spokesperson said in a statement. "China's modest expansion of the scope of its drone control this time is an important measure to demonstrate our stance…