Three men have been arrested and a minor has been detained for extorting a trader and threatening to kill him and hurl bombs at his home, police said.

In his complaint with Entally police station on June 23, the trader has alleged that the four brandished arms and threatened to kill him before forcing him to part with Rs 15,000 near his house on June 21.

“The extortionists threatened to kill the man and blow up his house with bombs if he did not pay another Rs2 lakh,” an officer of the city police’s detective department said.