U.N. Secretary-General Ban Ki-moon says U.N. inspectors will wrap up their mission in Syria on Friday and leave the following day. On Wednesday, Ban said any international response to the alleged chemical weapons attack should be decided upon after inspectors complete their probe.

U.N. Secretary-General Ban Ki-moon: “Let them conclude their — complete their work for four days. Then we will have to analyze scientifically by the experts team. Then, I think, we will have to report to the Security Council for any actions which they may deem it to — deem it necessary to take, yes.”

The United States has rejected a Syrian government request that U.N. inspectors extend their mission in Syria, calling it a delay tactic by the Assad regime.