Thai and Cambodian soldiers exchanged fire on a disputed stretch of their border on Sunday, witnesses said, the third flare-up in three days in an ancient feud over territory surrounding a 900-year-old Hindu temple.
The latest fighting occurred despite Thailand's announcement of a ceasefire on Saturday following clashes in the area that killed at least five people.
A witness said about 20 rounds went off in the vicinity of a 4.6-sq-km contested area around the 11th-century Preah Vihear temple, on a jungle-clad escarpment overlooking northern Cambodia and claimed by both Southeast Asian neighbours. "We are receiving reports of fresh shooting right now," said Thai army spokesman.
Earlier in the day, Thailand's prime minister called for a peaceful solution to the dispute but warned Thai soldiers will defend national sovereignty if attacked.
A Thai village school director in the area said about 2,500 people had been moved away from their village to safety.
On Saturday, Thai and Cambodian troops fought in which one Thai soldier weas killed.