The new feature on a U.S. Customs and Border Protection app allows undocumented migrants “a chance to leave before facing harsher consequences,” the agency’s head said.

The U.S. Customs and Border Protection app, called CBP Home, will offer an option for someone to signal their "intent to depart," the agency said.

The app, known as CBP Home, allows migrants to submit an "intent to depart", which US Customs and Border Patrol says offers them a chance to leave without "harsher consequences". US officials have repeatedly suggested that undocumented migrants in the country should leave voluntarily,