Flights transporting critically injured Haitians into the United States have temporarily been suspended because of logistical issues, including a lack of space, a White House spokesman said Saturday in response to reports of a dispute over who would pay for patients’ care.

“There has been no policy decision by anyone to suspend evacuee flights — this situation arose as we started to run out of room,” White House spokesman Tommy Vietor said Saturday. “Agencies across the [U.S. government] are working on solutions such as standing up hospitals for the critically ill in Haiti.”