NSW Police have arrested veteran broadcaster Alan Jones following an investigation into alleged indecent assault and sexual touching offences spanning two decades.

In a statement NSW Police said Child Abuse Squad detectives executed a warrant at the 83-year-old's luxury Sydney apartment at Circular Quay about 7:45am.

The State Crime Command's Child Abuse Squad established Strike Force Bonnefin in March to investigate a number of alleged indecent assaults and sexual touching incidents between 2001 and 2019.

Jones arrived at Day Street Police Station in the back of an unmarked police car at 11:15am.

A search warrant is continuing and NSW Police are expected to provide an update this afternoon.

NSW Police Commissioner Karen Webb said the arrest followed a "very complex" investigation.

"This is a result of a very long, thorough and protracted investigation," she said at a press conference between Sydney and Wollongong.

Commissioner Webb said detectives had been "working tirelessly" on the investigation.

"There's no such thing as a matter that's too old to be investigated," she said.

NSW Premier Chris Minns, who also spoke at the press conference, declined to comment on the matter.

"I can understand the interest in the topic, but it's just not appropriate for me to comment on it," he said.

The commissioner said police expect other alleged victims may come forward.

"I can't speculate in this particular case, but what is often the case is when it is known – the full circumstances and those parties involved – other people may come forward, and we are anticipating that other people may come forward," she said.

Jones had a broadcasting career spanning more than 35 years, with the shock jock dominating Sydney’s airwaves for decades.

He started his media career as morning news presenter for 2UE in 1985.

Jones is best-known for his program on Sky News and breakfast radio show on Sydney radio station 2GB, which he joined after leaving 2UE in 2002.

He was the morning broadcaster for the station for 18 years until May 2020.

Jones's contract with Sky News Australia was not renewed in November 2021.

The shock jock later joined streaming news channel ADH TV, which features a slew of conservative political commentators.

His last show on the streaming station aired in November 2023.

Before his broadcasting career, Jones was speechwriter and senior adviser to then prime minister Malcolm Fraser for three years.

He became Australian rugby union coach in 1984 and coached Australia to victory in 102 matches over four years, including winning the 1986 Bledisloe Cup.