seriously injured in a fierce gun battle between two rival groups over a land dispute in Patna district late last night.
The police said all four persons were killed in the exchange of fire on the spot in the Khajekalan police station area.
The deceased were identified as Ajit Kumar, Dasrath, Dheeraj Kumar and Amit alias Lalu, sources said.
Satyanand Yadav, who was critically wounded in the clash,
was admitted to the Patna Medical College Hospital.