Immigration officials are expected to begin detention review hearings on Monday in Vancouver for the roughly 490 migrants who arrived in B.C. aboard a cargo ship on Friday.
The migrants are believed to be Tamils from Sri Lanka and most are expected to make refugee claims. They have been held in custody since their ship docked in Victoria.
The Immigration and Refugee Board is required to hold the hearings within 48 hours of detention, but with so many people, it is expected the board will require considerable time to hear all the cases.