President Xi Jinping and his wife, Peng Liyuan, bid farewell as they board their plane at Julius Nyerere International Airport in Dar es Salaam, Tanzania, on March 25. Thomas Mukoya / REUTERS

President Xi Jinping arrived in Beijing on Sunday morning after visits to Russia, Tanzania, South Africa and the Republic of Congo.

In South Africa, Xi also attended the fifth leaders' summit of BRICS countries held on Tuesday and Wednesday in Durban. BRICS is an economic bloc representing five of the world's leading emerging economies — China, Brazil, Russia, India and South Africa.

Xi's entourages, including his wife Peng Liyuan and other officials, all arrived together in Beijing.

Xi left Brazzaville, capital of the Republic of Congo, on Saturday at noon local time for Beijing after the last leg of his four-nation tour.

Xi's visit to Russia has enhanced bilateral strategic mutual trust and support and expanded practical cooperation between the two countries, Foreign Minister Wang Yi told the media on Sunday.

The international community has lauded Xi's first visit to Africa as the head of state, and his attendance at the BRICS summit, saying he sent a positive signal of friendship, cooperation, mutual benefit and win-win results to the whole world.

Xinhua contributed to this story.