The communications watchdog has ordered Channel Nine's A Current Affair program to make an on-air apology over a report into a shopping centre in Sydney.

The report, titled All Asian Mall, explored what it said was "an Asian makeover" at the Castle Hill shopping centre in the city's north-west.

The Australian Communications and Media Authority (ACMA) found it breached television's code of practice.

It said the story was inaccurate, placed gratuitous emphasis on ethnicity and was likely to provoke intense dislike on the grounds of ethnic origin.

The program, which aired in November, reported shopkeepers were being told to make way for other retailers who were targeting the area's growing Asian community.

The former leader of the One Nation party, Pauline Hanson, was also featured calling on the Government to "please explain".

The report sparked a flood of viewer comments and local media outrage.

Channel Nine has told the ACMA it will broadcast the findings and apologise on air tonight, and pull the story from its website.