Despite a recent surge in the number of Japanese school-age children living overseas, the education ministry has failed to dispatch enough teachers to Japanese schools abroad over the past decade, causing an acute labor shortage at those institutions, a Ministry of Internal Affairs and Communications report warned Friday.

The ministry admonished the Ministry of Education, Culture, Sports, Science and Technology for failing to re-hire retired teachers and send them to teach in overseas schools.

According to the report, the number of children at compulsory education age, roughly 6 to 14, surged 1.4 times to 76,536 in 2014 from 55,566 in 2005.