National News Agency (Sonna) reports.
Locals have expressed concerns about being isolated from their neighbourhoods. Authorities have dispatched two boats for rescue.
Gedo is one of the regions in Somalia worst affected by devastating floods.
More than a dozen people have been killed by the floods across the country, while thousands have either been displaced or isolated.
The country is experiencing heavier than normal rains after emerging from one of its worst droughts in four decades.
Heavy downpours have devastated parts of East Africa over the last few weeks.