A 81-year-old South Korean man set himself on fire on Wednesday in front of the Japanese embassy in Seoul.
And he did so in protest.
The incident took place around 12:40 p.m local time.
At the time, hundreds of civic groups were staging a weekly rally for the victims of sexual slavery during world war 2.
During the war the Japanese military set up brothels which housed what are known as comfort women.
According to local media, the man came to Seoul from the southern city of Gwangju to join the rally.
After the fire was put out, the man was rushed to a nearby hospital for treatment.
Today’s rally was larger than usual and comes ahead of the 70th anniversary of the Korean Peninsula’s liberation from Japanese colonial rule.
Japanese Prime Minister Shinzo Abe is expected to issue a statement on Japan’s wartime atrocities on Friday.
But some media reports say that Abe won’t apologize for Japan’s past recruitment of Korean women for sexual slavey.