Cambodia’s powerful former leader Hun Sen and Thailand’s prime minister have made separate visits to border areas.

Thailand has imposed restrictions on all travellers heading into Cambodia, as the two countries remain locked in a bitter border dispute. The ban applies to any vehicle or person trying to cross into Cambodia from checkpoints across several Thai provinces, as well as foreign tourists flying into Siem Reap.

The leaders of Thailand and Cambodia are visiting different parts of their disputed land border on Thursday as tensions between the two neighbours simmer over a territorial dispute and the Thai government teeters on the brink of collapse.