Hong Kong students refused a meeting with the Chief Executive Carrie Lam, dealing her China-backed government another setback to its efforts to avert further mass protests.

Student leaders at the Hong Kong University of Science and Technology said they refused an invitation for a closed-door meeting with Lam, saying they are not interested in private talks and will not sit down until she meets their demands.

The students, like several groups involved in recent protests, are seeking the complete withdrawal of legislation allowing extraditions to China and reforms allowing direct elections for the city's top office.