A convicted gang rapist remains on the run two days after he escaped a busy Sydney hospital to avoid being deported – as sickening details of his crimes emerge. 

Michael Angok, 30, fled on foot from Bankstown Hospital on Wednesday morning after being transported from the Villawood Immigration Detention Centre.

He had presented to the emergency department under police guard and was waiting to return when he made his daring escape shortly after 9.30am.

Some of Angok’s discarded possessions were located several hundred metres away, as a massive manhunt was launched involving PolAir and the police dog unit.

He had been awaiting deportation after being convicted over his involvement in the gang rape of a 14-year-old girl at a western Sydney park in February 2014.

The girl was walking home alone through Doonside’s Bill Colbourne Reserve when she was sexually assaulted by four males of African appearance.

One of the men assaulted the teen before pinning her to the footpath to allow the others to assault her over a 30-minute period, police said at the time.

The court heard that during the rape, there was talk about the four male offenders ‘taking turns’. 

Angok, then 18, was the second man to have sexual intercourse with the victim, which occurred while another offender put his penis in her mouth.

The court also heard that during the incident, the victim heard one of the men say ‘give me a piece of that’.

The incident sparked reprisal fears and calls for calm from African and Pacific Islander community leaders, prompting police to take part in a unity walk through Blacktown and the local council to conduct safety audits of its parks.

Angok was arrested at a Doonside home a month later after police released CCTV of several men wanted over the disturbing attack.

In February 2016, Angok was convicted of four counts of aggravated sexual intercourse with a person over 14 years and under 16 years and sentenced to an aggregate term of imprisonment of 45 months, with a two-year non-parole period. 

He was released the following year and had been detained at Villawood for some time after his visa was revoked while behind bars.

It is unclear when he was expected to be deported from Australia.

In early 2019, the Administrative Appeals Tribunal upheld a decision to cancel Angok’s visa, ‘given the nature of the applicant’s sexual offending against a minor in company of others’.

The judgement stated that Angok, then nine, arrived in Australia with his family on refugee visas in 2005 after leaving South Sudan. He has not departed Australia since.

It also detailed how Angok’s police record as a minor involved incidents of violence, drug use and failure to comply with police instructions.

‘Even taking into account the applicant’s traumatic childhood and psychological problems, given the nature of his offences, the risk of re-offending and the serious consequences that repeat offending would have on the public, these factors, in the Tribunal’s view, weigh strongly against the applicant and revocation of the cancellation decision,’ the ruling stated.

When asked about his previous offences, NSW Detective Superintendent Brett Van Akker told reporters on Thursday he was unable to comment. 

‘He’s well known to us,’ Van Akker said. ‘He has a criminal conviction and was awaiting deportation at the time.’

He also explained why police waited 24 hours to alert the public. 

‘We had to exhaust other opportunities yesterday to get that person into custody,’ Supt Van Akker said.

‘And we also don’t want to alert the community to any real concern if we are able to bring that person into custody straight away.’

The Australian Federal Police applied for and were granted an arrest warrant and a joint operation to locate Angok continues under Strike Force Tolquin.

His escape is the latest in a string of incidents at Villawood Detention Centre, operated by private prison contractor MTC.

Angok is described as being of African appearance, about 175cm to 180cm tall, of thin build with short black hair.

He was last seen wearing a black hooded jumper, grey tracksuit pants and white ‘croc’ sandals.

Angok previously lived in the Blacktown area and could be using the public transport network to get around.

Anyone who sees Angok is urged not to approach him and to contact police immediately.