SEVEN Hong Kong pro-democracy politicians have been detained or face arrest, with a police statement saying one of them had been charged.

The move was expected to escalate public fury during months of unrest in the city.

Politicians told a news conference their colleagues are expected to be charged with obstructing the local assembly during a raucous meeting on May 11 over a now-shelved China extradition bill that sparked five months of protests.

All of those detained or arrested were expected to face court tomorrow.

The weekend development comes after a student who fell from a parking garage when police fired tear gas during clashes with anti-government protesters died on Friday, fuelling more outrage against authorities in the semi-autonomous Chinese territory.