Former White House press secretary Jay Carney suggested the Obama administration restrict travel to the United States from West African countries, the core of the Ebola outbreak.

Carney, who stepped down as press secretary earlier this year, said Thursday that the administration needs do more in fighting Ebola, including possible flight restrictions. The Obama administration has said there are no plans to institute a travel ban.

“I think substantive actions need to be taken, and they may involve flight restrictions, they may involve moving all patients to specific hospitals in the country that can handle Ebola, and I think those would be wise decisions to make,” Carney said on CNN. “I’m not an expert, but I think that would demonstrate a level of seriousness in response to this that is merited at this point."

Two American nurses have contracted Ebola after treating Liberian national Thomas Eric Duncan, who traveled to the United States by plane.