TOKYO, June 10 (Xinhuanet) -- About 50 students at a high school in Hikari, south Japan's Yamaguchi Prefecture, were injured and taken to local hospitals Friday after a student there allegedly threw an explosive into a classroom.

    According to the National Police Agency, one student sustained heavy injuries but remains conscious.

    An 18-year-old male senior at the prefectural government-run Hikari Senior High School was arrested on suspicion of assault, the agency said.

    The police said the student has admitted to the allegations, adding that the explosive may have been a glass bottle containing what appears to be firecrackers. Enditem