A warning shot fired yesterday by a Hong Kong police officer was the first since the protests began. The Hong Kong city government is urging peace, as increased violence would “push Hong Kong to the verge of a very dangerous situation,” officials said.

The increased violence is occurring amid a larger Chinese military presence outside of Hong Kong. Chinese state media also issued an ominous warning on the government’s “authority, but also its responsibility to intervene when riots take place in Hong Kong.”