Police say a South Korean man set himself on fire during an anti-Japan protest in Seoul but appears to have avoided life-threatening injuries.

Rescue worker Woo Kyung-suk said Wednesday that the man sustained third-degree burns on his upper body and arms and was breathing when he was carried into an emergency vehicle. The man's motives weren't immediately clear.

The rally in front of the Japanese Embassy was attended by hundreds of people demanding justice for South Korean women who were forced to work as sex slaves for the Japanese military during World War II.