An American tourist in Seoul said he sprayed graffiti in 155 places to raise awareness about teeth grinding

• A US tourist in South Korea was accused of vandalizing 155 places in Seoul.
• He's accused of spray-painting the words "bruxism" or "brux" on storefronts and gates.
• The unnamed American told police he was trying to raise awareness of the condition, bruxism.

An American tourist has been accused of spraying graffiti at 155 locations in Seoul's central Yongsan district, police said on Monday.

The Yongsan police department said it arrested an unnamed American man in his 30s who arrived in October as a tourist, South Korean news agency Yonhap reported.