President Trump offered his condolences to French people on Thursday, hours after a gunman killed one police officer and injured another in Paris' Champs-Elysees shopping district.

"Our condolences from our country to the people of France. It's a very, very terrible thing that's going on in the world today," Trump told reporters at a joint White House press conference with Italian Prime Minister Paolo Gentiloni.

Following the shooting, a spokeswoman for the Paris police department told the Associated Press that the gunman was specifically targeting law enforcement officials who were guarding an area that is known for attracting tourists.

"It looks like another terrorist attack," Trump said. "It just never ends and we have to be strong and we have to be vigilant, and I've been saying it for a long time."

The attack occurred three days before France is set to kick off round one of its much anticipated presidential election.