After 400 days in an Egyptian jail Al Jazeera journalist Peter Greste has taken to Twitter saying he is due to leave Cyprus shortly and fly home to Australia.

In his first posts on his official Twitter account, Greste thanked his supporters and said he would soon be reunited with the rest of his family.

• Gresta breaks silence
• ‘Peter Gresta is a free man’

“Brother Mike and I due to head home to Australia shortly. Can’t wait for the family reunion,” he wrote on Tuesday.

The award-winning correspondent was freed and deported on Sunday and immediately flew with his brother to Cyprus.

Special thanks to all who’ve supported us over the past year. MUST NOT FORGET THOSE STILL IN PRISON @Bahrooz #FreeAJStaff @MFFahmy11

— Peter Greste (@PeterGreste) February 3, 2015

The 49-year-old also posted a picture of himself standing with his feet in the sea, his arms raised in victory signs, writing: “Free in Cyprus! Feels sweet. Peter back online for first time in 400+ days.”

Free in Cyprus! Feels sweet. Peter back online for first time in 400+ days. Special thanks to Mike 4 nursing twitter pic.twitter.com/APATL1RljI — Peter Greste (@PeterGreste) February 3, 2015

Greste was arrested for allegedly aiding the blacklisted Muslim Brotherhood, along with Al Jazeera colleagues Canadian-Egyptian Mohamed Fahmy and Baher Mohamed of Egypt.

His colleagues remain behind in an Egyptian prison, although Fahmy’s family said on Tuesday he had renounced his Egyptian citizenship in a bid to pave the way for his release.

Mr Greste was released from prison on Monday under a decree passed by Egypt’s President Abdel Fattah al-Sisi that allows the transfer on foreigners on trial.

He said he was worried his freedom would be “snatched away” on his way to the airport.

“The ride to the airport was a sense of really wondering if it was going to come to an end because we’ve had an awful lot of false starts,” he said in his first interview since being released.

“I really didn’t want to let myself believe it really was happening until I got my backside on a seat on that plane with my brother mike and we knew then, at least for me, it was over.”

Mr Greste revealed his angst over leaving his colleagues Baher Mohamed and Mohamed Fahmy, who were also arrested on charges of aiding the Muslim Brotherhood.

He said the men had become his brothers.

Brother Mike and I due to head home to Australia shortly. Can’t wait for the family reunion. Keep shouting #FreeAJStaff

— Peter Greste (@PeterGreste) February 3, 2015

– with AAP