A petrol bomb thrown over a peace wall in East Belfast ignited where a four-year-old girl was playing in the street.
She received minor injuries to her hand. It is understood she received first aid treatment from police officers at the scene.
Police have appealed for calm following the incident, which happened on Tuesday afternoon in the Bryson Street area of nationalist Short Strand.
Sinn Fein councillor Niall Ó Donnghaile said the child was left shaken and frightened by the attack.
Tensions in the area are high after a petrol bomb was thrown from the Short Strand into loyalist Cluan Place on Sunday.
A 15-year-old male was subsequently arrested for arson.
Police have also received reports of stones being thrown between different areas. A number of young people gathered at the interface on Monday night and were met with a heavy police presence.
Detectives at Musgrave Police Station are appealing for anyone who may have witnessed Tuesday's incident to contact them on 0845 600 8000.
They have also asked parents to ensure they know the whereabouts of their children to ensure that they do not get drawn into any violence or anti-social behaviour.