Displaced Cambodians are evacuated from the Thai-Cambodia border area at Oddar Meanchey province, 20 km (12 miles) from Ta Moan, April 23, 2011. [Photo/Agencies]

BANGKOK - One Thai soldier has been killed and four others injured in a freshest round of clash at the Thai- Cambodian disputed border area on Saturday, a military source told Xinhua on Saturday.

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A very reliable source in the Thai military told Xinhua that one Thai soldier was killed in the fatal clashes and at least four soldiers have been injured, while it is reported no Thai civilians are dead or injured.

Col. Sansern Kaewkamnerd, Thai Army spokesman, said the firing erupted Saturday morning at 6.15 am at the border near the Pa Nom Dong Rak district of Thailand's Surin province, the same area where the skirmishes erupted on Friday morning.

At press time, the skirmishes are continuing, said Sansern.

Asked who triggered the clash, Sansern replied "How do you think I would respond?" Sansern later added that the Cambodian side started the shooting first.  

The Thai army then has to fire back as "to protect themselves," he said.  

The Thai Army and high level Thai officials are now trying to contact Cambodian officials in an attempt to end the clash.

About 15,000 of Thai villagers have evacuated to refugee camps set up by the government, he said.