The US President Joe Biden is meeting Chinese leader Xi Jinping in California today in what some commentators are seeing as a key diplomatic moment for the superpower's relations. It's the first time in a year that they've met for talks.

Some are hoping that it may ease friction over things like military conflicts, drug-trafficking and artificial intelligence. The BBC understands the leaders are set to announce a crackdown on the manufacture and export of fentanyl out of China. What other agreements might the leaders of the world’s two largest economies reach?