Pro-democracy demonstrators in Hong Kong have retaken streets in the Mong Kok district cleared by the authorities just a few hours earlier.
Some 9,000 protesters pushed back riot police, managing to retake territory south of a major intersection.
They have been occupying parts of the city for weeks, angered at China's curbs on who can stand in Hong Kong's next leadership election in 2017.
Police made 26 arrests for assault and other offenses on Friday evening.
Fifteen police officers were injured in the clashes, police said, while several protesters were seen being knocked to the ground during the latest scuffles, AP news agency reports.