China has lodged representations with the Libyan side over its embassy in Tripoli being stormed by protestors on Monday, a Foreign Ministry spokesman said Tuesday.

"China expressed grave concerns over the attack on the Chinese embassy in Libya," said Foreign Ministry spokesman Liu Weimin at a regular press conference.

According to the Vienna Convention on Diplomatic Relations, the host country has the responsibility to protect diplomats and properties of foreign missions from intrusion, said Liu.

"We urge the Libyan side to adopt effective measures to prevent similar incidents from happening again and secure the safety of Chinese citizens and agencies in Libya," he said.

Liu said the Libyan side had apologized for the incident and promised to strengthen security around the Chinese embassy in Tripoli.