The husband of Australian aid worker Jennifer Downes, who was found dead in Fiji last month, has faced court charged with her murder.

Henri Lusaka John, a Congolese national and Australian permanent resident, had been hospitalised on July 23 after he was found seriously injured at the Suva home where Ms Downes' body was also found.

Jennifer Downes (right) with partner Henri Lusaka John, who has been charged with her murder. Credit:Facebook

According to local media, Mr John was released from hospital on Thursday, and charged with Ms Downes' murder on the weekend.

The couple, who have three children, had reportedly separated before Mr John allegedly carried out the murder and attempted to take his own life.