By Athit PerawongmethaARANYAPRATHET, Thailand (Reuters) -Thailand's prime minister and Cambodia's influential former premier are visiting different parts of their disputed land border on Thursday as tensions simmer between the two neighbours over a territorial dispute and the Thai government teeters on the brink of collapse.

Thailand is imposing new border restrictions including blocking tourists from entering Cambodia as the two countries engage in retaliation in their border dispute.

Cambodian police officials stand next to the closed gate at Poipet International border checkpoint between Cambodia-Thailand, at Poipet town in Banteay Meanchey province on June 24, 2025. Thailand's army closed border crossings with Cambodia in six provinces on June 23 to all vehicles and foot passengers except students and people seeking medical treatment,