Beyonce:

After Hurricane Katrina in 2005, Beyonce and Rowland founded the Survivor Foundation to provide transitional housing for victims in the Houston area, to which Beyonce contributed an initial $250,000. The foundation has since expanded to work with other charities in the city, and also provided relief following Hurricane Ike three years later.

Please answer a question about this article. If the question is unanswerable, say "unanswerable". What other hurricane did Beyonce's foundation help with?
Hurricane Ike