Prosecutors yesterday said they are investigating accusations of interference with the nation’s submarine program and that details of it were leaked, in what would be a serious breach of national security.

Taiwan unveiled its first domestically developed submarine on Thursday last week, a major step in a project aimed at bolstering the nation’s defense and deterrence in the face of military threats from China, although it would not enter service for two years.

Indigenous Defense Submarine program head Huang Shu-kuang (黃曙光) told local media last week that lawmakers, whom he did not name, had made it “difficult” for the program to purchase critical equipment, and that a contractor who had failed to obtain a bid had forwarded information to China.