BANGKOK, Dec. 15 (Xinhua) -- Thailand's military announced on Monday the designation of the Gulf of Thailand as a high-risk area. According to Thai media, the move is aimed at cutting off sea routes for transporting military supplies to Cambodia.

In a social media post on Monday, the Royal Thai Armed Forces Headquarters clarified that the move is a safety precaution. It stressed that the measure does not amount to a full closure of the gulf, and will not affect vessels from third countries.

At a press conference on the Thailand-Cambodia border situation held on Monday, Thai Foreign Ministry Spokesperson Nikorndej Balankura said the ministry has sent a letter to the UN High Commissioner for Human Rights to lodge a complaint against Cambodia's indiscriminate attacks on Thailand, including strikes targeting civilian areas.

According to a briefing by a Ministry of Defence spokesperson on Sunday, the latest round of clashes between Thailand and Cambodia has left 16 Thai soldiers dead and more than 320 others wounded. As of the afternoon of Monday, 13 civilians have been killed and over 260,000 people have been displaced. ■