Excited locals in Communist Laos converged on the country's first 7-Eleven store when it opened in the capital Vientiane on September 7.

Footage from the scene showed long queues of people waiting to buy Slurpee, the unashamedly capitalist conglomerate's signature frozen drink.

The machine reportedly went out of service due to the high volume of customers.

7-Eleven International Co-CEO's Shin Abe and Ken Wakabayashi said the store opening in Laos marks the 20th country and region for 7-Eleven.

Landlocked Laos, on the border of Thailand, Vietnam and China, remains one of the most underdeveloped countries in Southeast Asia, with few multi national corporations and a capital city that is almost comatose by 10pm.

However, it has been targeted by developers from China, South Korea and Japan due to its vast untapped resources and powerful rivers, which produce hydroelectric power.