Doctors in the southern Nigerian state of Edo have gone on strike to protest at the kidnapping of a colleague.

尼日利亚南部埃多州的医生举行罢工，抗议一位同事被不明身份者绑架。

The director of a hospital in Benin City was abducted¹（绑架，诱拐） by unknown gunmen while he was on his way home from work.

Dr Osahun Enabulele, a spokesman for the Nigerian Medical Association, told the BBC the doctors were angered by the lack of security in Edo state.

In August 2009, doctors staged a demonstration² in Edo after five co-workers（工友，同事） were kidnapped.

The current strike started on Wednesday and involves more than 50 doctors at the University of Benin Teaching Hospital.

Dr Enabulele said the Association's members were only treating emergency cases.

Edo's Commissioner³ for Health Dr Moses Momoh told the BBC's Abdul Mohammed Isa the authorities were doing everything possible to find the kidnapped man.

He called on the striking doctors to return to work in the interests of（为了……的利益） their patients' health.

But the doctors have said they will strike until their colleague is found and released.