Bangkok, Thailand (CNN) -- Clashes over a disputed area along the Thai-Cambodian border erupted for a fourth consecutive day Monday, resulting in the death of a Thai soldier, a military official said. Four other Thai soldiers have been killed since the fighting started Friday, according to Col. Sansern Kaewkumnerd. Authorities have evacuated thousands of people from nearby villages. Each side blames the other for the violence, which first broke out last week near two temples in the Phanom Dong Rak district of Thailand's Surin province. Cambodia's government has said three of its troops have been killed. On Monday, Sansern accused Cambodians of trying to seize two ancient temples, Ta Kwai and Ta Muen Thom.
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NEW: Clinton says the United States is "deeply concerned"
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Each side blames the other for the violence, which erupted near two temples
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Thousands have been evacuated from nearby villages
Thailand's foreign ministry issued statements Saturday accusing Cambodia of "firing heavy weapons at innocent @placeholder civilians."