Taiwan has seen a “significant rise” in the number of individuals charged with suspicion of spying on behalf of China in recent years, according to new data released by the island’s security bureau, amid escalating intimidation by Beijing.

Taiwanese charged with suspicion of spying on behalf of China rose by a third to 64 people last year, the island's National Security Bureau said, adding most were current or retired soldiers.

Prosecutions relating to Chinese espionage have jumped in Taiwan in recent years, according to a new report by the country's National Security Bureau. It says China is seeking to infiltrate all sectors in Taiwan and trying to recruit sniper gangs and spies to carry out armed insurrection in the event of a Chinese invasion.

Taiwan’s Defence Minister Wellington Koo said the armed forces of the island nation would closely coordinate with the coast guard and help monitor areas where sea cable are located

Taiwan will dispatch its navy if needed to help the coast guard respond to any suspicious activity near undersea communication cables, Defence Minister Wellington Koo said on Thursday, after a Chinese-linked ship was suspected of damaging one.