Chinese leader Xi Jinping and Indian Prime Minister Narendra Modi have pledged to resolve their border differences and bolster cooperation ahead of the opening of a regional summit in Tianjin.

The Indian prime minister's visit to China is his first in seven years, and comes days after President Donald Trump 's new, 50 percent tariff on Indian goods came into effect. The U.S. had intended to impose a 25 percent tariff on India's exports, but later doubled this over the country's continued purchases of Russian energy exports.