The Israeli strikes were “significantly escalating the tensions” in the Middle East, the embassy said in a statement that urged Chinese citizens in Israel to closely monitor the evolving situation, remain calm, and stay vigilant.

“Citizens are advised to prepare for potential attacks involving missiles, rockets, drones, or other threats, and to take comprehensive safety measures,” the embassy said.

A senior Iranian security official told Reuters that Iran’s retaliation was being discussed at the highest level, and that Tehran was planning to give a “harsh and decisive” response.

The Chinese embassy in Tehran called Iran’s latest security situation “severe and complicated” following Israel’s military strikes early on Friday, while also warning its citizens and businesses to monitor the situation and take precautions.

“The … embassy in Iran reminds Chinese citizens and businesses in the country to closely monitor the situation, enhance their safety awareness, and strengthen security measures,” it said in a statement.