Gene Ulmer and Bonnie Ulmer survey the damage to their home Aug. 19 in St. Amant, La. Last week, Louisiana was overwhelmed with floodwater, causing at least 13 deaths. (Joe Raedle/Getty Images)

Democratic presidential nominee Hillary Clinton said that she called Louisiana Gov. John Bel Edwards (D) on Friday, but she suggested that she would not travel to the state to avoid distracting from flood relief efforts there.

In a statement posted on Facebook, Clinton urged her supporters to donate to the relief efforts.

"The flooding there is bigger than anyone expected — more than 40,000 homes have been damaged and more than 100,000 people have been affected," Clinton said. "My heart breaks for Louisiana, and right now, the relief effort can't afford any distractions.

"The very best way this team can help is to make sure Louisianans have the resources they need," she added.

Clinton's comments come after Donald Trump and his running mate, Mike Pence, traveled to Baton Rouge on Friday to tour the damage.

Trump and other Republicans have criticized President Obama for not leaving his vacation at Martha's Vineyard to travel to Louisiana. The White House announced later Friday that Obama would visit Baton Rouge on Tuesday.

The state's Democratic governor, Bel Edwards, said that Trump did not contact his office before visiting.

"Gov. Edwards wasn't informed of the Trump campaign's visit to the state or the schedule," his office said in a statement. "We welcome them to Louisiana, but not for a photo-op. Instead we hope they’ll consider volunteering or making a sizable donation to the LA Flood Relief Fund to help the victims of this storm."

Clinton urged support for the Red Cross and the Baton Rouge Area Foundation. She also emailed a call for donations to her list of supporters.

"These are our friends, our family members, our community — and they’re counting on us to reach out with open arms right now," Clinton said. "This team has done so much for me.

"Now I’m asking you to show that same support to the victims in Louisiana, so that we can begin to rebuild together," she added.