The Australian Immigration Department said it will not change it's visa processing system based on a continuing protest at Sydney's Villawood Detention Centre.

Protesters have spent the night on the roof of the Detention Centre in a demonstration sparked by the death of a Fijian detainee yesterday.

36 year old Josefa Rauluni died yesterday, after writing a letter to the Immigration Department that he wanted to remain in Australia.

He was expected to be deported to Fiji yesterday.

Late yesterday afternoon three men climbed onto the roof of the detention centre and were later joined by another eight men.

They are still there and say they will not come down until the Australian Immigration Department agrees to an independent review of their applications for asylum.

Temperatures reached a low of about 9 degrees Celsius in Villawood overnight.

However the Immigration Department's National Communications Manager, Sandi Logan said the non-compliance of the detainees will not change the department's approach.