Governments are studying the decision to prohibit youths from using platforms like Facebook and TikTok as worries grow about the potential harm they cause.

The U.S. announced agreements on Sunday with Malaysia, Thailand and Cambodia, securing support for its efforts to pressure China on trade and critical minerals.

Investors sent major global indexes higher on optimism that President Trump and China’s top leader, Xi Jinping, could reach a wider agreement this week.

Concern is increasing throughout Southeast Asia as U.S. officials, intent on slowing China, have yet to say how they will define the origin country of imports.