Biden to Xi, 'US worried about collaboration with Moscow' - Breaking news. US President Joe Biden raised American concerns with his Chinese counterpart Xi Jinping.

Beijing's cooperation with Russia to rebuild Moscow's basic military industry. Also on the agenda were collaboration in artificial intelligence and in the fight against climate change. Last November, during their meeting in California, Biden and Xi agreed to fight the fentanyl emergency. The American president continued his pressure on narcotics and synthetic drugs, a US official said today.