Convicted killer Michael Ibrahim is in a stable condition in hospital after being shot as he returned to his luxury Sydney flat.

Ibrahim was hit in the shoulder by one of a number of bullets fired at him on his way home in Macquarie Street in Sydney’s CBD on Sunday night.

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Michael Ibrahim, younger brother of Kings Cross identity John Ibrahim and jailed former bikie Hassan Sam Ibrahim, is known to have enemies stemming from his links to underworld figures.

Detectives are reportedly investigating whether the shooting was linked to a feud between the Ibrahim clan and other notorious criminal families.

Ibrahim spent more than six years in prison after pleading guilty to the manslaughter of Robin Nassour in 2006.

He was acquitted in 2012 of conspiring to murder nightclub owner John Macris, who he believed was responsible for gunning down his brother, Fadi Ibrahim, outside a home in Sydney’s north.

Sam Ibrahim has been behind bars on firearms charges since his bail was revoked in July last year.

Family, friends and associates, including brother John, flocked to St Vincent’s Hospital where Michael Ibrahim has been recovering since the shooting about 10.30pm on Sunday.

The 36-year-old has been sitting up and in good spirits in a stable condition, said hospital spokesman David Faktor on Monday afternoon.

Mr Faktor said the patient had not undergone surgery, correcting earlier information.

Meanwhile, police continued their investigation at the scene of the attack on one of Sydney’s most prestigious strip of apartments.

Police are looking for at least two attackers and a white, possibly late model, Audi.

Michael Ibrahim had earlier vowed to move on with his life at his August 2014 parole hearing.

He told the board he wouldn’t break the law if released from jail and would abide by the “most stringent” parole conditions.

Being behind bars while his mother was treated for cancer was a “wake up call”, he told the parole board.

He was granted parole, reportedly subject to a range of strict conditions, including electronic monitoring and keeping away from Kings Cross and other parts of Sydney.