Russia's Ministry for Emergency Situations has declared a state of emergency in the country's eastern Amur region.
Minister Vladimir Puchkov arrived in the area on August 7 to inspect the damage caused by flooding.
The local branch of the Emergency Situations Ministry reported early on August 7 that the level of water in the Amur and Zeya rivers had risen between 7 and 10 meters above its banks and forecasts call for heavy rains through August 9.
Puchkov said emergency teams working in the area needed reinforcements.
More than 300 homes were flooded and some 1,500 people have been evacuated from several villages so far.
Officials say more people will need to be evacuated soon, as the Zeya hydropower plant is already discharging more water from its reservoir, which will flood villages downstream.
Based on reporting by ITAR-TASS and Interfax