Syria has given up less than five percent of its chemical weapons arsenal and will miss next week’s deadline to send all toxic agents abroad for destruction, sources familiar with the matter said on Wednesday.

The deliveries, in two shipments this month to the northern Syrian port of Latakia totaled 4.1 percent of the roughly 1433 metric tons of toxic agents reported by Damascus to the Organization for the Prohibition of Chemical Weapons (OPCW), said the sources, who spoke on condition of anonymity.

“It’s not enough and there is no sign of more,” one source briefed on the situation said.