Solomons Deputy Police Commissioner, Peter Marshall, says a flight over the island of Gizo has revealed even more devastation.
He says there have been small pockets of people signaling the airplane and his team sighted two bodies off an island.
"In terms of the deaths we have been able to substantiate to some degree or rather, it is still about 20 or 21. However, we have extreme areas in the Western Province and very remote villages and we really do not have an accurate handle, if you like, in terms of how many people have perished or have been seriously injured."
