SEOUL, Jan. 16 (Yonhap) -- A Chinese man detained after throwing firebombs at Japan's Embassy in Seoul as a protest over Tokyo's wartime sexual enslavement of Asian women has shown eccentric behavior such as singing South Korea's national anthem and cursing Japan in fluent Korean, officials said Monday.

The 38-year-old man, surnamed Liu, was arrested last week after he hurled four hand-made firebombs at the wall of the Japanese Embassy in downtown Seoul. No property damage or human injuries were reported following the attack, but the assault left minor scorch marks on the embassy wall.
The Chinese man from Guangzhou, who came to South Korea on a tourist visa, said he launched the attack because "Japan holds an irresponsible attitude toward the sex slavery issue."

   While being detained at Seoul's Jongno Police Station to face further interrogation, he cheered for South Korea, shouting "hurrah" at least twice in Korean and singing the country's national anthem frequently, according to the officers there.