Philippine President Rodrigo Duterte has ordered the Filipino military to have aircraft and ships ready at any moment’s notice in case tensions escalate.

South Korean officials are discussing how to strengthen security for nearly 1,900 South Koreans in the two countries, while an Indian foreign ministry spokesman told AP that India is not planning to evacuate any citizens yet.

China has made no indication of planned evacuations but has previously taken such steps, pulling nearly 500 Chinese nationals from Yemen in 2015.