U.S. Congressman Drew Ferguson, the former mayor of West Point, has deleted a D-Day tweet that accidentally featured Nazi soldiers.

Ferguson sent a tweet Wednesday morning quoting former President Harry Truman, but the image on the post showed soldiers in front of a tank that featured the Iron Cross, a German military symbol.

Dan McLagan, a campaign spokesman for Ferguson, said the image was selected by an intern at their digital company.

“As a patriot and the father of a daughter serving in the Navy, Drew is pretty furious about it,” McLagan wrote in an email. “We deleted the post immediately and replaced the image, but the sentiment of heartfelt gratitude and reverence for the men who charged into withering fire on those beaches 74 years ago can never be erased from our hearts.”

Wednesday marked the 74th anniversary of the Allied invasion of Normandy. The Truman quote Ferguson used in the tweet said: “The heroism of our own troops … was matched by that of the armed forces of the nations that fought by our side … they absorbed the blows … and they shared to the full in the ultimate destruction of our enemy.”

The tweet was replaced with one featuring American troops in a photo, again paired with the Truman quote.

Ferguson represents U.S. District 3 in the House of Representatives, which includes Troup County. He is running for re-election and won the Republican primary last month. He’ll face Chuck Enderlin in the general election in November.