Hong Kong protesters shot bows and hurled petrol bombs from a barricaded university campus on Sunday.
The Hong Kong Polytechnic University campus was one of five universities that protesters used to block the city's central cross-harbour road tunnel.
According to reports, a policeman and a media officer were wounded in the incident.
Clashes also broke out on the artery of Nathan Road of Mong Kok, a frequent venue for unrest.
Meanwhile, China's People's Liberation Army (PLA) soldiers were seen monitoring developments from a base close to the university.
It comes after a government spokesman clarified that the military had initiated the operation as a "voluntary community activity" and not at the request of the government.
Earlier, the soldiers were seen helping residents clear debris that blocked key roads.
At least four killed in Israeli strike on building in Lebanon's Baalbek
Kuwait announces death of child from shrapnel wound
Philippine lawmakers advance impeachment of Vice President Duterte
Qatar busts two cells linked to Iran’s Revolutionary Guard
GCC condemns Iranian attack on Port of Fujairah
