Taiwan President Tsai Ing-wen warned Thursday that mainland Chinese who attacked Hong Kongers or damaged "Lennon Walls" could be barred from the island following a recent spate of such incidents.
The walls plastered in colourful sticky-notes, posters and slogans that have sprung up across Hong Kong have also been set up in Taiwan, mostly in university campuses.
Taiwan held a Hong Kong solidarity rally last weekend which was largely peaceful, although Hong Kong popstar Denise Ho -- a staunch democracy advocate -- had red paint thrown at her by an unidentified assailant as she spoke to local media.