A fleet of drones will be deployed at some of Sydney’s most popular beaches to monitor for sharks.

The NSW Government’s $87 million plan has been made immediately available for lifesavers to use the aircraft above Bondi, Tamarama and Maroubra Beaches from Thursday morning.

WATCH THE VIDEO ABOVE: Bondi expands shark drone surveillance after attacks

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The drones will patrol the beaches for any shark activity between 7.30am and 4pm, when lifesavers are also monitoring the coast.

It comes amid heightened community concern over an increase in shark activity across Sydney.

Bondi Beach was closed for the third day in a row after another shark sighting on Thursday. Authories belive it to be a great white shark, the same one that has been seen two days earlier.

Drones had already seen limited use at some Sydney beaches and introduced to Coogee Beach after 34-year-old mother Leah Stewart was mauled by a suspected great white on June 13.

A massive investment from the NSW Government will fund the immediate use of drones at some of Sydney’s most popular beaches. Credit: Susie Dodds/AAP

She suffered bites to her arms and legs, significant blood loss and fractures throughout her body during the attack.

One of her arms need to be amputated, and wounds contaminated with sand and debris caused an extreme risk of infection.

The increased activity led to mounting pressure on state premier Chris Minns, who on Wednesday ruled out a summit on the issue but said measures such as the use of drones to detect sharks close to beaches would be paid for by the government.

“We’re going to unveil some practical measures that we think can make a big difference,” he told Sunrise.

“Particularly in relation to drone technology and nets, particularly during the summer period, and we’ll be making announcements very soon.

“I can’t promise that there won’t be further attacks, I can’t promise that great whites won’t interact with swimmers.

“But I think we can mitigate the number on some of our most popular beaches.”

The measure comes after a rise in shark activity in Sydney, including the brutal attack of a mother. Credit: ANNA KUCERA/AAPIMAGE

Minns said both mitigation measures would be a “world-leading” approach and therefore the government would need time to build a framework for using the technology.

“It’s not as if we can take it off the shelf from California or Miami or Brazil or Johannesburg, places where there is big populations and shark attacks, we have to invent it right here in NSW,” he said.

“We’re determined to do that, but there’s not an automatic solution to this problem that I can roll out this afternoon.

“If there was, that’s exactly what I’d do.”