China has reportedly instructed its major oil refineries to temporarily suspend exports of diesel and petrol due to supply disruptions caused by the ongoing war in the Middle East, according to a Bloomberg News report published Thursday citing unnamed sources. The directive was said to have been delivered verbally by officials from the National Development and Reform Commission (NDRC) during a meeting with refinery representatives and was to take effect immediately.

The report noted that China, a net importer of crude oil, relies heavily on the Strait of Hormuz for energy shipments, which are currently halted. Last year, 57 percent of China’s seaborne crude imports came from the Middle East, according to data from analytics firm Kpler. Refineries were also told not to sign new export contracts and to negotiate cancellations of finalized shipments. When asked about the matter, a Chinese foreign ministry spokesperson said they were unaware of such a decision.

Bloomberg identified PetroChina, Sinopec, CNOOC, Sinochem Group, and Zhejiang Petrochemical as regular fuel exporters contacted by AFP, though none commented on the reported suspension.