A group of top Chinese police officials conducted field inspection Wednesday on two cargo ships which were attacked earlier this month and left 13 Chinese sailors dead on the Mekong river in north Thailand.

The Chinese delegation, dispatched by China's Ministry of Public Security for work related to the incident, arrived at the Police Station of Chiang Saen district, Chiang Rai Province to hold talks with a group of local police officials Wednesday morning and paid tribute to the victims.

The Chinese police officials, accompanied by the local officials, got aboard the two ships which are still anchored and cordoned off in the pier of Chiang Saen and inspected the crime scenes and examined relevant evidence.

Zhang Xinfeng, Vice Minister of the Publice Security Ministry and head of the delegation, said the Thai police showed carefulness and graveness in the process of investigation and pledged that Chinese experts would provide full support to the Thai side so as to reveal the truth about the case and bring the murderers to justice.

He said the case highlighted the cooperation between the two country's law enforcement units during the investigation process.

Popkorn Kooncharoensuk, police chief of Chiang Saen district told Xinhua that the case was of great gravity and the local police had been fully cooperating with the Chinese officials in the investigation.

The two ships, "Hua Ping" and "Yun Xing 8" were hijacked by unidentified armed peopleon Oct. 5. 13 Chinese sailors were later confirmed dead. The delegation of 8 police officials held talks on Monday with Thai Police Chief Priewpan Damapong and deputy Prime Minister Chalerm Ubumrung respectively over the incident.