The two leaders also exchanged views on international and regional issues of mutual concern.

After the talks, Xi and Lukashenko signed a treaty of friendship and cooperation and a joint statement on further deepening the comprehensive strategic partnership between the two countries.

It is a cornerstone of the China-Belarus comprehensive strategic partnership to support each other on national sovereignty, independence, territorial integrity, security, development and other issues involving their core interests and major concern, said the joint statement.

It said the two sides will take measures to enlarge trade volume, improve the structure of trade, increase mutual investment and boost technology cooperation between the two countries.

In addition, the "three evil forces" of terrorism, extremism and separatism remain serious threats to the security and stability in the Eurasia region. China and Belarus will encourage closer cooperation to fight them as well as drug-related crimes, human trafficking and other trans-border organized crimes, according to the statement.

The two countries also voiced support for necessary and reasonable reforms of the United Nations and its Security Council in the statement.

China and Belarus agreed that developing countries should have more say in the Security Council, and that medium- and small-sized countries should have more accession to the Security Council in rotation, said the statement.

They called for comprehensive and democratic consultations to find out a package solution to the Security Council reform, with the interests and concern of all sides taken into consideration, rather than setting a timetable for the reform or advancing immature motions forcibly.

The two countries also voiced their common stance on human rights, opposing double standard or politicization on human rights, said the statement.

According to the statement, Xi also invited Lukashenko to visit China when convenient for both sides.

They also witnessed the signing of a series of cooperative documents covering politics, culture, economy, technology, education, local government cooperation and other sectors.

In addition, the two leaders met reporters after their talks. Xi described the talks as "fruitful," saying the two leaders defined the key areas and direction for the two countries to deepen cooperation in the next period to come.

Xi said that the two sides agreed to take building the Silk Road Economic Belt as an opportunity to deepen all-round and practical cooperation between the two countries.

Both sides also agreed to, together with all peace-loving people in the world, firmly safeguard the fruits of the victory of WWII, jointly promote a more just and equitable international order and international system, and endeavor to realize the lofty ideal of ever-lasting peace for humankind.