Story highlights
The military has been regularly patrolling the area to monitor any and all activity by Chinese vessels, which are believed to be manned by their military
The Philippines military has spotted illegal man-made structures in the South China Sea near the area where hundreds of Chinese vessels had gathered last month.
Authorities have documented these structures as illegal and man-made, which are visible on Union Banks in the South China Sea’s Spratly Islands.
Military chief Cirilito Sobejana has claimed these structures are not very far from the islands claimed by the Philippines inside its exclusive economic zone.