One man shot another with a self-made gun on a bustling street in Changsha, capital of Hunan province, on Thursday, police said.

The rare shooting sparked debate among local residents as it reminded them of serial killer and robber Zhou Kehua who shot four people dead in the provincial capital between 2009 and 2011.

But the shooting on Thursday was sparked by a financial dispute, the public security bureau in Changsha's Furong district said on its micro blog.