A senior U.S. military commander said Tuesday that 4,000 American troops are on the ground in Syria, a figure far greater than the 503 personnel the Trump administration says are deployed there.

Army Maj. Gen. James B. Jarrard, who heads the U.S.-led Special Operations task force targeting the Islamic State in Syria and Iraq, offered the surprising figure while briefing Pentagon-based reporters via satellite from Baghdad.

When asked to confirm the 4,000 figure, Jarrard appeared to be caught off guard. He then apologized and said the number is about 500. Eric Pahon, a Pentagon spokesman facilitating the briefing, interjected moments later, insisting the number is just 503.

“The general misspoke,” Pahon told The Washington Post after the briefing. “I don’t know what 4,000 refers to. That’s nowhere near an accurate number.”