600 people on Pukapuka in the northern Cook Islands are packed into ten houses after cyclone Percy decimated many of the buildings, houses and other structures.
And, 40 people on nearby Nassau have moved to the school after the winds blew off the roof of the church where they were sheltering and destroyed many of their houses.
Chief inspector, John Tini, of the Emergency Operations centre, says heavy rain is forcing people to remain under shelter.
He says people on Pukapuka were at the school but they had to move from there after the cyclone ripped through.
"The school buildings - the roofing has been blown off by the wind. This is together with the two churches, the Cook Islands Christian church and also the Catholic. But, the ten houses that are still intact is being used by the population for shelter. On the island of Nassau, they were sheltering at the Catholic at one time but they are now sheltering at the school."
Chief Inspector Tini says a state of emergency has been declared for Pukapuka and Nassau.