South Koreans will be ‘extinct’ by 2750 if nothing is done to halt the nation’s falling fertility rate, according to a study by The National Assembly Research Service in Seoul.

The fertility rate declined to a new low of 1.19 children per woman in 2013, the study showed, well below the fertility rate required to sustainSouth Korea‘s current population of 50 million people, the Chosun Ilbo reported.

In a simulation, the NARS study suggests that the population will shrink to 40 million in 2056 and 10 million in 2136. The last South Korean, the report indicates, will die in 2750, making it the first national group in the world to become extinct.

The simulation is a worst-case scenario and does not consider possible changes in immigration policy, for example.

The study, carried out at the request of Yang Seung-jo, a member of the opposition New Politics Alliance for Democracy, underlines the challenges facing a number of nations in the Asia-Pacific region.

Japan, Taiwan, Singapore and increasingly China are all experiencing growing financial pressures caused by rising healthcare costs and pension payments for an elderly population.

The problem is particularly serious in South Korea, where more than 38 per cent of the population is predicted to be of retirement age by 2050, according to the National Statistics Office. The equivalent figure in Japan is an estimated 39.6 per cent by 2050.

According to a 2012 study conducted by Tohoku University, Japan will go extinct in about one thousand years, with the last Japanese child born in 3011.

David Coleman, a population expert at Oxford University, has previously warned that South Korea’s fertility rate is so low that it threatens the existence of the nation.

The NARS study suggests that the southern Korean port city of Busan is most at risk, largely because of a sharp decline in the number of young and middle-aged residents, and that the last person will be born in the city in 2413.