Statues symbolizing "comfort women" were installed on five buses in Seoul on Monday, giving passengers a constant reminder of the thorny issue between the Asian neighbors.

The buses with the statues — symbolizing the mostly Asian women who were forced to provide sex at Japanese military brothels before and during World War II — will run through the South Korean capital until the end of September.

Lim Jin-wook, the president of a Seoul-based transportation company that initiated the project, said the Seoul city government had nothing to do with it.