Taiwanese idol Lai Kuan-lin has apologised after he was photographed smoking, not wearing his mask properly and spitting on the road by Chinese media.

The 19-year-old is a former member of the now-disbanded K-pop boy band Wanna One, which was formed through the second season of South Korean talent competition Produce 101 (2017). He is expanding his career in China and was caught by the paparazzi there when he pulled his mask down to his chin to smoke.