Here's what you need to know this morning.

Duo arrested after Dillon investigation

Detectives investigating the alleged murder of 15-year-old Brayden Dillon have arrested a prison inmate and a solicitor over their alleged roles in the commercial sale of the drug ice.

The 40-year-old was taken from his cell inside the high-security supermax wing of the Goulburn Correctional Facility this morning and is being questioned by investigators.

A lawyer, 62, was arrested at his home in Glebe this morning and is being questioned at Newtown police station.

The arrests are not related to the death of the teenager, who was shot dead at his Glenfield home on April 14 , 2017.

Beaches remain closed, for now

Manly Beach was closed this morning after the incident. ( ABC News: Lily Mayers )

In the wake of yesterday's shark attack authorities are carrying out surveillance at Manly and Shelly beaches this morning before deciding whether to re-open them.

Peter Schultz, 56, was swimming at Shelley Beach around sunrise yesterday when he was bitten, suffering cuts to his stomach and leg.

Clinton Rose from the Northern Beaches Council said it was unclear whether or not it was safe to re-open Manly and Shelley beaches.

"We're doing some patrols up and down the beach with the jet skis and some drones in the air just to check and once we reassess after doing those patrols we'll look at whether we open the beach or not," he said.

McKay announces woman-focused cabinet

Jodi McKay's shadow cabinet will be announced today. ( AAP: Nikki Short )

New State Opposition Leader Jodi McKay will reveal her shadow cabinet today, with half the positions to be held by women.

Five new women are expected to enter the shadow ministry, including Blue Mountains MP Trish Doyle and Summer Hill MP Jo Haylen. It comes after three women were appointed to major leadership positions, with Regional MP Yasmin Catley elected as Ms McKay's deputy.

Ms MacKay said all the people in her cabinet were selected "on merit".

"But what I will stress is I didn't set out to achieve this — what I set out to do was to get the very best people into our shadow cabinet," she told the ABC this morning.



HIV diagnoses on the decline

A new report has found the lowest number of new HIV diagnoses across Australia since 2001.

In a report released by the Kirby Institute at the University of New South Wales, new figures reveal a 23 per cent reduction in new diagnoses over the past five years.

It comes just after a year since preventative medication pre-exposure prophylaxis was added to the Pharmaceutical Benefits Scheme.