The Solomon Islands National Disaster Management Office says it will no longer assist those still living in a Honiara evacuation centre following flash floods in April.
The state of disaster for Guadalcanal was lifted two weeks ago.
The NDMO's director, Loti Yates, says 18 to 20 families are still residing in a building at the Solomon Islands National University, despite the government having done all it can to repatriate them.
Mr Yates says it will now be up to the owner of the evacuation centre, the Solomon Islands National University, to decide how long evacuees can stay there.
"The NDMO, we've basically said that whoever remains there at their own will will have to deal with the onus of the premises and the NDMO won't be supporting them anything from now on. Those people who are currently residing in the school, in that premises, will have to deal with the Solomon Islands National University."
Loti Yates says nearly 10,000 people have been repatriated since April.