One Direction's Liam Payne said: "The pictures I have seen of little children in between the ruins made my heart break.
"All of us in the band are shocked by how many people need help, so we're asking the public to continue to be as generous as they possibly can."
More top news
The shocking video of Laquan McDonald being killed brings the debate about racism in the US criminal justice system centre stage once more.
A video of a white police officer shooting dead a black teenager has been released by authorities in Chicago.
Cold in the wind