Seoul: The government will conduct a survey on the 316 South Korean workers who returned home after being held in immigration detention in the U.S. state of Georgia earlier this month as part of efforts to gather accounts that could be used in visa reform talks with Washington, the foreign ministry said Monday.

According to Yonhap News Agency, the survey, running through next Monday, comes after Seoul and Washington agreed to launch a working-level group to improve U.S. work visas for South Korean business personnel. This decision follows the unprecedented mass raid and detention of the workers, highlighting the need for clearer visa guidelines.

Participants will take part in the individual survey via links sent through text messages or email. Additional one-on-one interviews will be arranged for those who wish to provide further details, the ministry stated.

Based on the survey results, the government plans to identify and analyze the difficulties and damages experienced by the nationals during their arrest and detention, as well as the treatment they received at the detention facilities.

The results will be shared with the U.S. side, and the government plans to raise issues related to the survey outcome if necessary, the ministry added.