Hong Kong's government doesn't see any benefit in conceding to more demands from protesters, according to a top adviser to Chief Executive Carrie Lam, though the increasingly violent demonstrations are unlikely to stop anytime soon.

Radical demonstrators — some of whom have lobbed gasoline bombs at police and vandalized subway stations in recent weeks — won't give up their struggle even if the government meets all of their demands, said Bernard Chan, convener of the city's Executive Council.

The city has been gripped by historic pro-democracy rallies that have stretched into a fourth month. What began as pushback against legislation allowing extraditions to China has shifted into calls for greater democratic freedoms.