SEOUL, Sept 10 (Reuters) - South Korean Foreign Minister

Cho Hyun and Korean companies have discussed U.S. visa issues

related to the recent detention of hundreds of workers during a

U.S. immigration raid, the foreign ministry said on Wednesday.

Cho said the government was making every effort to ensure

the safe return of the detained workers and that there would be

no consequences for their reentry to the United State, according

to the ministry.

Representative of the Korean companies called for clear U.S.

government guidelines on visas during the meeting with Cho in

Washington, the ministry said in a statement.