Facebook said that it has also removed seven pages, three groups and five accounts, including some portraying protesters as cockroaches and terrorists.
The Chinese government has been clamping down on those who voice dissent on Twitter, even though the service is blocked beyond Hong Kong.
The unprecedented political crisis was sparked by opposition to a plan to allow extraditions to the Chinese mainland.
Hong Kong democracy activists kicked off new round of protests that began over a plan to allow extraditions to mainland China.
The demonstrations started as rallies against a controversial bill that would allow extraditions to mainland China, but have since morphed into a call for greater democratic reform in Hong Kong.
The officers added that they are unsure whether they would be informed ahead of time if Chinese paramilitary or army forces were deployed in Hong Kong.
Trump has been reticent to criticize China's stance on Hong Kong, indicating he regards the unrest as an internal matter for Beijing.
'China has enough solutions and enough power to quell the unrest swiftly,' said China's ambassador to London Liu Xiaoming.
UN High Commissioner for Human Rights, Michelle Bachelet, urged Hong Kong authorities to exercise restraint and investigate evidence of its forces firing tear gas at protesters.
In a series of tweets, the US president linked a possible trade deal with Beijing to a peaceful resolution to the political unrest that has roiled the semi-autonomous Chinese city for 10 weeks.
It was the second time this week that China had sought to frame the protests as 'terrorism' which have raised fears it may deploy force to quell the unrest.
Hong Kong has been gripped by ten weeks of protests that have seen millions take to the streets, sparked by opposition to a planned law that would have allowed extraditions to mainland China.
Chinese state and social media had earlier aired video of security forces gathering across the border from the enclave.
Under the 'One country, two systems' principle, the media in Hong Kong enjoys freedoms unheard of in mainland China.
Hong Kong has become a particularly sensitive subject for Beijing with the financial hub plunged into months of pro-democracy protests, and international brands have been caught in the crossfire.