Facebook has removed fake accounts and pages - one originating in China and the other in the Philippines.
The one network that originated in China targeted US presidential candidates Joe Biden and Donald Trump, although the network hardly gained any following in the US, Facebook said on Tuesday.
The social networking giant said both the operations violated its "policy against coordinated inauthentic behaviour".
In each case, the people behind this activity coordinated with one another and used fake accounts as a central part of their operations to mislead people about who they are and what they are doing, Nathaniel Gleicher, Facebook's Head of Security Policy wrote in a blog post on Tuesday.
Facebook removed 155 accounts, 11 Pages, nine Groups and 6 Instagram accounts related to the China activity for violating its policy against foreign or government interference which is coordinated inauthentic behaviour on behalf of a foreign or government entity.
This activity that originated in China focused primarily on the Philippines and Southeast Asia more broadly, and also on the US.
This campaign took operational security steps to conceal their identity and location including through the use of VPNs (virtual private networks).
In Southeast Asia where this network focused most of its activity, they posted about global news and current events including Beijing's interests in the South China Sea; Hong Kong; content supportive of President Rodrigo Duterte and Sarah Duterte's potential run in the 2022 Presidential election, among other issues.
In the US, where this network focused the least and gained almost no following, they posted content both in support of and against presidential candidates Biden and Trump.
"Although the people behind this activity attempted to conceal their identities and coordination, our investigation found links to individuals in the Fujian province of China," Gleicher said.
Facebook also removed 57 Facebook accounts, 31 Pages and 20 Instagram accounts related to the Philippines activity.
This network focused on domestic audiences, Facebook said.
They posted in Filipino and English about local news and events including domestic politics, military activities against terrorism, pending anti-terrorism bill, criticism of communism, youth activists and opposition, the Communist Party of the Philippines and its military wing the New People's Army, and the National Democratic Front of the Philippines, it added.
*Edited from an IANS report