China’s Nationalist Party, which is allied with Taiwan’s independence movement, was not immediately available for comment.
China’s official Xinhua news agency, which carries state-run media in China, said the Taiwan Affairs Office of the Ministry of Foreign Affairs in Beijing had received information about the attack.
It did not elaborate.
A U.S. official said it is possible the Chinese attack could be linked to the death of a U.N. peacekeeper who died in China on Feb. 8.
The official spoke on condition of anonymity because the U.R.N., which coordinates the mission, was unaware of any information linking the attack to the peacekeeper.