Democratic presidential nominee Hillary Clinton on Tuesday said via social media that she's "closely monitoring" the flood that has hit south Louisiana. 

Clinton also directed her 8.3 million Twitter followers to the American Red Cross website devoted to Louisiana flood relief.

A federal disaster declaration has been issued to cover 20 parishes. At least 11 people have died in the flooding, and thousands more have had to be rescued from their homes and cars. More than 8,000 people had to stay in shelters overnight Monday.

President Barack Obama called Gov. John Bel Edwards on Sunday to discuss the flood and offer prayers for the state, but Obama has not yet commented publicly on the natural disaster, nor has he announced any plans to visit the flood-affected areas.

Republican presidential candidate Donald Trump has not publicly commented on the flooding. His campaign didn't respond to The Advocate's requests for comment.

Follow Elizabeth Crisp on Twitter, @elizabethcrisp.