According to reports citing The Wall Street Journal, some shipping operators are contacting the Houthi-affiliated Humanitarian Operations Coordination Center (HOCC) via email to request safe passage assurances before transiting the Red Sea. A Chinese container ship, Zhong Cheng Chang Ling, reportedly obtained a seven-day transit authorization in September. However, marine insurers and Yemen's internationally recognized Maritime Affairs Authority in Aden have warned that HOCC has no internationally recognized authority, and such "assurances" do not equate to actual safety.