A fan allegedly approached Katie asking for an autograph just as Suri yelled 'get out of the way' at the paparazzi blocking their path.
As Suri, Katie and a young friend got into a waiting car, the disgruntled fan is said to have shouted after her 'bye Suri, you little brat!' followed by 'bitch!' as the car pulled away.
Hollywoodlife.com reports that other waiting fans and photographers rounded on the man and told him he was 'out of line' for shouting a child.