Supermarket group Tesco has had to shut some of its stores in Thailand because of flooding affecting the country, and the retailer is helping with the relief effort.

Tesco, which runs 891 stores in Thailand, said the “overwhelming number” of its shops in the country are open but about 3% of its floorspace has been shut. Small-format Express stores have been most affected and Lotus hypermarkets have in the main escaped unharmed.

The retailer has donated emergency supplies to 2,000 people in affected areas and provided more than 20m Baht (£400,000) of financial aid including 3,000 relief packs as well as food, temporary accommodation and transportation.

Tesco Lotus is also establishing hubs to improve availability. Buying teams are working with suppliers to ensure everything is being done “to get essential items to where people need them most”.