Little Rock boy, 3, dies in road rage shooting

A three-year-old boy being taken out shopping by his grandmother has been killed in a road rage shooting in Little Rock, Arkansas, US police say.

Their vehicle was fired upon by another driver who thought the woman had not driven quickly enough through a stop sign, police said.

The grandmother drove away but the boy later died in hospital.

Police are hunting for a black Chevrolet Impala but gave few details of the man driving it.

The boy and his grandmother "were completely innocent" and had no relationship with Saturday's gunman, Little Rock Police tweeted.