Dhaka, Sept. 2 -- The US government has once again sounded a tough warning against visa fraud and illegal immigration, stressing that violators will face life-long bans and criminal prosecution.

According to a statement on its social platform Facebook of the US Embassy Dhaka, the US government interagency efforts are being intensified to detect and dismantle fraudulent visa schemes, as well as networks that aid and harbor undocumented migrants. "Those who commit visa fraud will be banned from the United States for life," the statement said. "A nation without borders is not a nation."

The US government also reaffirmed that it would pursue criminal charges against both individuals and groups involved in visa fraud or the facilitation of i...