Iran has resumed ​producing ballistic missiles from existing components while ‌working ‌in ​underground facilities, ‌the ⁠Wall ​Street Journal ⁠reported on Thursday, citing officials from ⁠the ‌United States ‌and ​the ‌Middle ‌East.The missiles are being ‌assembled in more limited ⁠quantities than before ⁠the war, the report added.