Dozens of wild elephants raided a farm to eat crops in Thailand.

Thermal drone footage shows the herd huddled in a cassava plantation in northeastern Nakhon Ratchasima province.

Suriyong Phasi, head of the Chorakhe Hin sub-district, said the herd of around around 100 jumbos emerged from the Thap Lan National Park and have been ransacking agricultural areas since November 13.

He said: 'Volunteers from the Chorakhe Hin and Udom Sap sub-districts districts have been trying to drive the elephants away. However, resources are stretched thin because the elephants are scattered in different places.

'This has been going on for more than a week, and the volunteers are starting to be fatigued.'

He added that officers needed more thermal drones to accurately pinpoint the location of the elephants.

Thailand has up to 3,500 elephants in the wild. The population has been increasing in recent years, but it is still a fraction of the estimated 300,000 wild elephants that lived in the country at the beginning of the 20th century.

The main threats to wild elephants in Thailand are habitat loss and fragmentation, poaching, and conflict with humans.