The Philippines will soon decide on an international platform to sue China for alleged damage to the marine environment, its justice minister said, as it pursues a second high-profile legal challenge against Beijing over the South China Sea.

The Philippines has launched a comic book to counter what the country says is China’s disinformation campaign to push its expansive territorial claims in the South China Sea.

The Philippines said on Saturday it had suspended a scientific survey in the South China Sea after its fisheries vessels faced "harassment" and aggressive behaviour from China's coast guard and navy.

Two Philippine ships had to call off their scientific probe after Chinese vessels and a helicopter intercepted them near the Spratly archipelago, according to the Philippines' coast guard.

Chinese coast guard ships and a Chinese navy helicopter harassed a group of Philippine fisheries vessels conducting a scientific survey in a hotly disputed area of the South China Sea, forcing them to cancel the operation,

The coastguard said a mission to collect sand samples was suspended due to the ‘disregard for safety exhibited by the Chinese maritime forces’.