Thousands of foreigners freed from online scam-operating centres in Myanmar are stuck in limbo on the border with Thailand after a multinational crackdown on the compounds run by criminal gangs, three sources told Reuters on Monday.

An airlift carrying more than 1,000 Chinese nationals who had worked at online scam centers in eastern Myanmar began Thursday, after the rescued workers were taken across the border to Thailand and put on chartered flights to China.

Myanmar’s military government said it is ready to hand over about 1,000 foreign nationals rescued from cyber scam centers near the Thai border as authorities vowed to intensify a crackdown against transnational criminal groups.