The mishap occurred this evening near Paritalla village on the Vijayawada-Hyderabad highway of Krishna district, Kanchikacherla sub-inspector of police K Eswara Rao said.
The youth, who hailed from Perakalapadu village were returning to their homes, he said.
The deceased have been identified as B Nagaraju(22), B Madhu (30) and J Koteswara Rao (25).
A case has been registered in this connection, the officer added.