"We are one nation. When one state hurts, we all hurt, and we must all work together to lift each other up. Working, building, restoring together," he said.
A Louisiana newspaper on Thursday called for Obama to cut his vacation short, saying, "A disaster this big begs for the personal presence of the President at ground zero."
Baton Rouge is also the site where three police officers were killed and three more wounded in a shooting last month in a city that had been in the spotlight over the police-involved shooting death of a black man outside of a convenient store.