The bathhouse waitress who killed a township official and injured another used "excessive force" in defending herself against a sexual assault, police said Sunday.

Police had finished their investigation and referred the case to the local procuratorate Sunday, the Public Security Bureau of Enshi Prefecture, Hubei Province, said in a statement.

Waitress Deng Yujiao, 21, fatally stabbed Deng Guida and injured Huang Dezhi, two township officials of Badong County, under the administration of Enshi, after she refused to join them in a bath on May 10 and the two men pushed and shoved and verbally insulted her, according to the statement.

Deng Yujiao took up a knife and stabbed the two men, which was "excessive force," the statement said.

She called police after the attack and turned herself in.

Deng, released Tuesday on bail from a detention center, was living with her family under police supervision.

Huang Dezhi, 41, was sacked from the post of vice director of the township office of business delegations, the county's Communist Party of China (CPC) Discipline Inspection Committee and the Supervisory Bureau said in a joint statement on Sunday.

He was also deprived of his CPC membership and has been detained in connection with public order offences.

Deng Zhongjia, 45, another vice director of the same office, was also fired as the incident had caused a "bad social effect". Deng, who went to the bathhouse with Huang and official Deng Guida, had not broken any laws or regulations, the statement said.

The bathhouse was closed.

The three Dengs were not related.

(Xinhua News Agency June 1, 2009)