Manchester attack: How kids feel about what happened at Ariana Grande concert
23 May 2017 Last updated at 14:39 BST
These school children in Manchester have spoken to Ricky about how they feel following the attack at an Ariana Grande concert in the city.
An explosion went off just after 10:30pm on Monday night as people were leaving the Manchester Arena.
You can read more about the story here.
If you are upset by anything you hear in the news there is advice here.