Thailand has cut electricity, internet and fuel supplies to five border areas in Myanmar, a senior Thai minister said on Wednesday, as the Southeast Asian nation steps up efforts to choke scam centres that have become a growing security concern.

Thailand cut cross-border electricity supplies to five locations in Myanmar on Wednesday, in an effort to stamp out online scam centres blamed for scaring away Chinese tourists. Fears among Chinese tourists of being kidnapped and forced to work in scam centres was blamed for a sharp drop in visitor numbers over the Lunar New Year holiday last week.

A team of doctors and nurses battled to revive Adabi, an 86-year-old Myanmar refugee fighting long-standing heart problems and pneumonia, as her daughter watched tearfully in a hospital in northwestern Thailand.

Thailand will suspend electricity supply to some border areas with Myanmar in an effort to curb scam centres, its government said on Tuesday, amid growing pressure on the illegal compounds that have ensnared vast numbers of people of multiple nationalities.

Thailand will cut off electricity, internet access and oil supplies to some areas in Myanmar suspected to house cyber scam operations, widening a crackdown after a high-profile trafficking of a Chinese actor put a spotlight on criminal activities across the Thai borders.