Taiwanese activist arrested for secession in China.

Taiwan political activist Yang Chih-yuan has been formally arrested on suspicion of "secession" in China, more than eight months after he was detained amid heightened tensions across the Taiwan Strait. Yang, a democracy campaigner and pro-independence politician, was detained by Chinese state security in Wenzhou in Zhejiang province last August. China's ruling Communist Party claims Taiwan as its own territory, despite having never controlled it, and has refused to rule out the use of force to "unify" the island with mainland China.