The South Korean Embassy in Bangkok received a letter threatening to destroy major roads and buildings in countries that have decided to dispatch troops to Iraq, reported South Korean Yonhap News Agency on Wednesday.

The letter, sent from a group calling itself the "Yellow-Red Overseas Organization," said the group would launch terrorist attacks on major facilities in eight countries, including South Korea, between April 20 and 30, said Yonhap.

The other specified countries were Japan, Thailand, the Philippines, Singapore, Australia, Kuwait and Pakistan.

Upon receiving reports from the embassy, Thai police have immediately begun an investigation, said Yonhap.

The threat came at a time that Seoul government insisted going on with its additional troop dispatch plan despite of the deteriorated security situation in the Middle East country and withdrawal of Spanish troops from there.

In February, the South Korean National Assembly approved a government proposal to deploy 3,600 additional troops, including combat personnel, which will make South Korea's military presence in the war-torn country the third-largest after the United States and Britain.

South Korea has already dispatched two separate batches of hundreds of army engineers and medics to southern Iraq.

South Korea's initial plan to deploy the troops to the northern city of Kirkuk by April under an independent operational command was cancelled last month because of a US demand for joint offensive operations in the region.

Seoul said earlier that it plans to dispatch the troops to either Sulamaniyah or Irbil, both Kurdish autonomous towns in northern Iraq, by June. And the final choice of the deployment place will be announced sometime next week, according to local media reports.

Source: Xinhua