Defense Secretary Jim Mattis said in a statement Tuesday that the Pentagon will allow current service members who are transgender to continue serving, while a panel of experts will study the issue. 

Mattis' statement puts President Trump's plan to ban all individuals who are transgender from the military on hold. On Friday, Mr. Trump -- as Hurricane Harvey made its way toward Texas -- sent his directive to the Pentagon to ban transgender troops from military service. Mr. Trump first announced the sudden policy shift in a tweet July 26

"Once the panel reports its recommendations and following my consultation with the secretary of Homeland Security, I will provide my advice to the president concerning implementation of his policy direction," Mattis said. "In the interim, current policy with respect to currently serving members will remain in place."

Mattis said the panel, which he will establish, will consist of experts within the Defense Department and Department of Homeland Security. Those experts will provide advice and recommendations on how to implement the president's direction. More information about the panel will be released, Mattis said. 

Mattis said the focus of the military "must always be on what is best for the military's combat effectiveness leading to victory on the battlefield."