Nigerian immigrant dies in Japan detention centre, after going on hunger strike to protest his lengthy detention

A yet to be named Nigerian has died in a Japanese immigration detention centre, an official said on Thursday, bringing to an end a hunger strike an activist group said was intended to protest against his being held for more than three years.

According to Reuters, his death was the 15th death since 2006 in a system widely criticised over medical standards, the monitoring of detainees and how guards respond to a medical emergency.

The man, in his 40s, died on Monday in the southern city of Nagasaki after he lost consciousness and was taken to hospital, said a detention centre official.

He did not give a cause of death.

RINK, a group supporting detainees at the centre, told Reuters the Nigerian had been on hunger strike to protest his lengthy detention.

Another 27 foreigners are on hunger strike at a detention centre in Ushiku, northeast of Tokyo, said a separate group supporting detainees at that facility.

Some of them have gone without food for 47 days, said Kimiko Tanaka, a spokeswoman for the group.

She said a 23-year-old Iranian man who sought asylum more than two years ago has lost weight and is using a wheelchair.

Two other men at Ushiku have been detained for five years, she said.

The reality of a lengthy detention is nothing but a human rights violation, Tanaka said.

An official at the national immigration agency confirmed there are hunger strikers at the Ushiku centre, but he did not say how many. Authorities are providing medical care and trying to persuade them to eat, he added.

Immigration is a contentious issue in Japan, where ethnic and cultural homogeneity are deeply rooted.