China's plan for President Xi Jinping to remain in office indefinitely has sparked social media opposition, drawing comparisons to North Korea's ruling dynasty and charges of creating a dictator by a Hong Kong pro-democracy activist.

The social media reaction late Sunday quickly saw China swing into a concerted propaganda push by Monday, blocking some articles and publishing pieces praising the party.

The ruling Communist Party on Sunday proposed to remove a constitutional clause limiting presidential service to just two terms in office, meaning Xi, who also heads the party and the military, might never have to retire.