Brics group looks to expand at summit despite divisions among key members

Experts say India concerned about expansion and any overt anti-west turn as leaders fly into South Africa

Leaders from developing countries representing almost half the world's population including China and Russia are meeting in South Africa for a key summit aimed at reinforcing their alliance as a counterweight to the west.

The Brics grouping summit in Johannesburg is being hosted by the South African president, Cyril Ramaphosa, and brings together the prime minister of India, Narendra Modi, as well the presidents of China, Xi Jinping, and Brazil, Luiz Inacio Lula da Silva.