The auto passengers were residents of Bendapudi village under Thondangi mandal and were on their way to Jeggampeta town when the mishap occurred near Kathipudi, they said.
Annavaram sub-inspector Partha Saradhi said the deceased included the auto driver.
The bodies were shifted to the Government Hospital at Prathipadu for post-mortem, he said.
The injured were rushed to the General Hospital at Kakinada, the SI said.
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