Four brothers today drowned in a septic tank in Upamaka village of Visakhapatnam district, police said.
Another member of the family is in critical condition.
According to police, a person who entered the tank in his house to empty it started drowning and in an attempt to save him three of his brothers also lost their lives.
Another member of the family fell unconscious and was shifted to a local hospital.
The dead have been identified as K. Krishna, K. Appa Rao, K. Nageswara Rao and K. Rajasekhar.