The son of Bharatiya Janata Party leader Prem Prakash Tiwari was shot dead outside his house in Lucknow’s upscale Hazratganj area on Saturday night, the Hindustan Times reported. Vaibhav Tiwari was attacked around 9 pm after he had an argument with some of his associates, the police said.

The assailants are believed to be his acquaintances. Lucknow Superintendent of Police Deepak Kumar said Tiwari got a call from his former business partner Suraj Shukla, who asked him to come downstairs, The Times of India reported. Shukla had come with another friend of theirs, Vikram Singh.

According to witnesses, the three had an argument after which one of them shot Tiwari. One of the bullets hit his chest, the Hindustan Times report said. He was taken to Lohia Hospital, but was declared brought dead.

The police said Singh has a criminal record.

Tiwari was the gram pradhan (village head) of Domariyaganj. He lived with his father, his wife and their three-year-old daughter. His father, Prem Prakash Tiwari, was the BJP MLA from Domariyaganj in 1989, 1991 and 1993. In 2014, he had joined the Samajwadi Party but again switched back to BJP before this year’s Assembly elections, PTI reported.