BEIJING - China Monday urged Singapore to strictly adhere to the one-China policy after nine Singaporean armored vehicles, reportedly used in military drills in Taiwan, were seized by Hong Kong customs last week.

"The Chinese side has lodged representations with the Singaporean side," Foreign Ministry spokesperson Geng Shuang said at a daily news briefing, adding that China has demanded that Singapore abide by the laws of Hong Kong and cooperate with the government of Hong Kong Special Administrative Region (HKSAR) in handling the matter.

Geng said the Chinese government strongly opposes any official interactions between Taiwan region and any country that has established diplomatic relations with China, including military exchanges and cooperation.

"We demand that the Singaporean government adhere to the one-China policy strictly and sincerely," said the spokesman.