Fresh clashes along the Thai-Cambodia border are being met with grim resignation by civilians, as they flock again to makeshift shelters still standing from the last bout of combat.

Displaced children chased each other on the tarmac of Thailand's Chang International Circuit race track where hundreds of families were sheltering in vast silo-shaped tents.

"I want the government to deal with this decisively so it stops for good," said handyman Boonsong Boonpimay at the racecourse in Buriram city, 70 kilometres (43 miles) from the fraught frontier.

"Otherwise we'll have to keep living like this -- unable to work and constantly on edge," the 51-year-old told AFP.

Thailand and Cambodia have a long-standing dispute over portions of their boundary dating back to its colonial-era demarcation.

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