Satellite images of the hotly disputed Scarborough Shoal in the South China Sea show a new floating barrier across its entrance, near where Philippine ships and Chinese coast guard vessels have had frequent run-ins.

One of the images taken by Maxar Technologies on Feb. 22 showed the barrier blocking the mouth of the shoal, where the Chinese coast guard last week claimed to have driven off a Philippine vessel "illegally intruding" into Beijing's waters.

The Philippines, which last week deployed a Bureau of Fisheries and Aquatic Resources (BFAR) vessel to patrol the shoal and transport fuel to Filipino fishermen in the area, said that China's claims were "inaccurate" and that Manila's activities there were lawful.