A World Health Organization spokesman said on Friday that failure to renew a cross-border aid operation into Syria which expires next month could result in a new “humanitarian disaster” for the country’s rebel-held region in the northwest, .

Christian Lindmeier told a Geneva news briefing that a failure of the U.N. Security Council to renew the mandate for another year on July 10 would make it impossible to deliver vaccines to the region, including COVID-19 vaccines.