A journalist freed after 400 days in an Egyptian jail "won't rest" until the two colleagues he was detained with are also released, his brother has said.

Australian Peter Greste was flown to Cyprus after a presidential "approval" meant he was allowed out of prison in Cairo.

But fellow Al Jazeera journalists Mohamed Fahmy and Baher Mohamed remain in jail, where the trio had been held since their arrest in December 2013.

And Mr Greste's brother, Andrew, told a news conference in Brisbane: "On a more sombre note, I know Peter wanted me to... acknowledge that Peter's two other colleagues are still there."

"Peter was arrested with Baher and Mohamed, and they also deserve to be free. Peter won't rest until they're released from prison and we hope that will follow in the very near future."

"Of course, we are thinking of Baher, Mohamed and their families who, thankfully, in this unusual twist of fate, we've got to know very well."

Andrew Greste said his brother (49) was "safe, healthy and very, very happy to be on his way home".

He also thanked journalists "who have not let the story die", adding: "You've all been on this ride with us and have supported us and Peter faithfully."

The three reporters were jailed for offences including spreading lies to help the outlawed Muslim Brotherhood, but were facing a retrial after their original convictions were overturned.

Canadian-Egyptian Mr Fahmy is expected to be freed over the coming days, when paperwork is completed that would allow authorities to deport him to Canada,

His fiancee Marwa Omara told reporters: "His deportation is in its final stages. We are hopeful."

It remains unclear what will happen to Mr Mohamed, who is Egyptian.

The news network is keeping the pressure on with their #FreeAJStaff campaign.

.@PeterGreste was released. We demand the same for @MFFahmy11 & @Bahrooz. #FreeAJStaff pic.twitter.com/qpMksfaujL

— Al Jazeera English (@AJEnglish) February 1, 2015

Al Anstey, Al Jazeera English's managing director, has thanked all those involved in his release.

Originally posted January 1st