(Randene Neill) - A helicopter is flying over Prince George Sunday trying to detect any sign of the missing Chinese migrants. They've been gone for almost 24 hours now, and there's still no sign of the seven men. This is the second migrant escape from the Prince George Regional Correction Centre, which used to be a maximum-security prison. Their escape is timely: there's word the seven migrants, along with dozens more, are scheduled to be deported Monday. Corrections officials promise to begin a full investigation tomorrow, but security at the prison has already been tightened.