Police obtained an arrest warrant Saturday for a Chinese agricultural trainee in Chiba Prefecture on suspicion of killing one person and injuring two others.

The police plan to question Cui Hongyi, 26, after he recovers from trying to commit suicide by drinking chemicals following the incident, officials said.

Cui is suspected of fatally stabbing Susumu Koshikawa, 62, an employee of an agricultural association, on the Morimoto Chikusan pig farm in Kisarazu, and stabbing a 53-year-old male office worker and a 44-year-old female interpreter Friday.

Koshikawa had arranged Cui's job at the farm after he arrived in Japan this spring.

The farm operator had grown concerned over Cui's attitude toward work and contacted the agricultural association, sources familiar with the situation said.

Koshikawa and the two who were injured were visiting the farm to persuade Cui to return to China, the sources said.

Cui was paid some 98,000 yen a month as a trainee, they said.

He complained that his pay was lower than that of other Chinese trainees, the sources said.