Three persons were washed away in the Kuppaganji rivulet near Chilakaluripet, while another was rescued by the villagers.
One person was killed in a lightning strike at Brahmanapalli village near Piduguralla, while another was killed when an uprooted tree fell on him.
Deputy Chief Minister N China Rajappa, who also holds the Home and Disaster Management portfolios and who has been touring Chilakaluripet to oversee the rescue-and-relief operations in the flood-hit areas, announced an ex-gratia of Rs 4 lakh each to the kin of the deceased.
As there was a forecast of more rain in the next couple of days, people living in the low-lying areas were being evacuated to safer places, the deputy chief minister said.
He has directed the officials to be on a "high alert" to tackle any eventuality.