"Some villagers spotted an unattended parcel lying just outside the temple in the afternoon and tried to open it which led to the explosion," Jayaramaraju the Sub-Divisional Officer of Police, Chirala said.
Four persons were injured among whom the condition of one identified as B Srinivas Rao (40) is stated to be serious and was shifted to Guntur government hospital, the Sub-Divisional Officer of Police said.
Bomb disposal squad was rushed to the spot, Jayaramaraju said, adding a case has been registered by Vetapalem police and further investigation is on.