China is employing ships and a barrier to tighten control of the entrance to the Scarborough Shoal in the South China Sea amid roiling ​tension with the Philippines over the disputed feature, satellite imagery obtained by Reuters shows. Scarborough is one of Asia’s most hotly disputed maritime sites, where ‌some diplomats and analysts fear long-running frictions and confrontations could degenerate into armed conflict. The presence of four fishing boats, a Chinese naval or coast guard ship and a new floating barrier comes as the Philippines sends its own coast guard and fisheries vessels to support its fishermen frequently driven away by larger Chinese patrols.

Full report : China moves to block entrance to disputed South China Sea shoal, images show.