Photo taken on Oct. 18 shows the opening of the 19th Communist Party of China (CPC) National Congress in Beijing. (Xinhua/Lan Hongguang)

Five years after the launching of its high-profile anti-corruption campaign, the Communist Party of China (CPC) continues its fight. Corruption is considered "the greatest threat" the Party faces. The 19th CPC National Congress report, delivered Wednesday, said this battle never ends.

This is an ongoing issue of great importance in China so the following Q&A will cover what the CPC is doing to tackle corruption:

Q: When did the anti-corruption campaign begin?
A: Five years ago, the CPC leadership launched a high-profile anti-corruption campaign, which has led to the downfall of a number of high-level officials, known as "tigers," and lower-level "flies" who serve at the grassroots level.

Q: How many officials have been investigated?
A: Disciplinary authorities have investigated 440 officials at or above provincial or corps level for corruption over the past five years. More than 8,900 city level officials and over 63,000 county level officials were punished. A total of 278,000 grassroots Party members and officials were also punished.

Q: What is CPC's latest move in its anti-corruption fight?
A: The Communist Party of China has revised its Constitution to "make comprehensive efforts" to ensure that "the fight against corruption keeps going". This means that the CPC must exercise and encourage self-supervision and practice strict self-governance. The Party will also work towards national anti-corruption legislation and create a platform for reporting.

Q: What if the suspects flee?
A: China is working with the international community to hunt corruption suspects who had fled overseas. The cooperation has led to the capture of 3,453 fugitives. Among the top 100 fugitives listed on an Interpol red notice, 48 have been arrested.