A Hunter beach has been closed this morning after a string of shark sightings.

Redhead beach was closed around 9.45 this morning after a shark was reported to Surf Life Saving NSW.

SLSNSW confirmed the beach was closed after a shark was sighted at 9.41am.

The species of shark has not been confirmed however a tagged white shark was detected by smart drum lines off the beach earlier around 9.25am.

The closure comes after a number of tagged great white sharks were detected off the Lake Macquarie beach over the last few days.

Tagged white shark number 3318 was detected a number of times be receivers over the weekend after last being recorded off Pambula Beach.

In the last week three other tagged white sharks have been recorded by the same receiver.

The latest sightings and recording come after Hunter shark Hunter Joel Nancarrow warned of greater great white shark activity off our beaches thanks to an anomaly in ocean currents pushing them closer to the coast. 

A man who suffered burns while cleaning a barbecue, and a woman involved in a motorbike crash, have been flown to hospitals after separate incidents on the weekend.

The Westpac Rescue Helicopter was tasked to a motorcycle crash on the New England Highway at Ardglen, near Murrurundi, about 2pm on Sunday, October 18. 

NSW Ambulance paramedics and the helicopter's critical care team treated a woman aged in her 60s for multiple injuries before she was airlifted to John Hunter Hospital in Newcastle.

The night before, about 7pm on Saturday, the chopper was tasked to help a man in his 50s who had suffered burns to his face and arms while cleaning a barbecue at Fishing Point, Lake Macquarie. 

He was airlifted to Royal North Shore Hospital for further treatment. 

'After years of reading exciting stories about businesses opening and sad ones about their departures, I decided to write about the businesses that have stuck around.'

Police are searching for a woman missing from Pokolbin. 

Georgia Goldstein, also known as Georgia Hall, 38, was last seen on Hermitage Road, Pokolbin about 9.30pm on Wednesday October 14. 

Georgia was described as being of Caucasian appearance, about 165cm tall, of medium build and with dark brown hair. 

Police said she may be travelling in a navy-blue Volkswagen Tiguan with Victorian number plates 2EM2EF. 

Anyone with information was urged to contact Hunter Valley Police District or Crime Stoppers on 1800 333 000. 

Police are appealing for public assistance to locate a teenage boy reported missing from the Hunter.

Xavier Ingham, 15, was last seen at Tenambit on Friday, October 9.

When he was unable to be located or contacted, officers attached to Port Stephens Hunter Police District were notified a week later on Friday, October 16,  and immediately commenced inquiries into his whereabouts.

Police and family hold concerns for Xavier’s welfare due to his young age.

Xavier is described as Caucasian appearance, about 170 centimetres tall, with a slim build and short brown hair.

It is not known what he maybe wearing.

He is known to frequent the Belmont North and Tenambit areas, police said.

Anyone with information into his whereabouts is urged to contact Maitland Police Station or Crime Stoppers on 1800 333 000.

'There's only a handful of community stations that operate the way we do, and it comes down to the fact we are full of experienced radio people.'

'She could criticise and uncover flaws or weaknesses in artworks and exhibitions without devaluing the artist's attempts or breaking their spirit. It was a delicate dance.'

Japan and England artist duo A.A Murakami's New Spring has been on display at the Newcastle Art Gallery since September. 

The artists are visiting Newcastle on Saturday October 17 as part of an artist talk and masterclass. 

The duo is made up of Azusa Murakami and Alexander Groves. 

On Saturday evening they will explore the ideas behind their installation and offer insight into their 'ephemeral technology' practice. 

New Spring is described as a multisensory work of art where thousands of mist-filled bubbles will bloom and fall like flowers from tree-like sculptures. 

The talk will take place from 6.30pm to 7.30pm on Saturday October 17 and will cost $25 for general admission and $22.50 for Foundation members.

Four audiovisual works by local and international artists will be displayed at Newcastle's The Lock Up Contemporary Art Space. 

The works are on loan from the National Gallery of Australia as part of the Sharing the National Collection program. 

The pieces by Australian, Singaporean, American and French artists will be projected onto the outside of the gallery's sandstone facade. 

Director of the Lock-Up Gallery, Alexandra Pedley, said the loan was exciting news for the gallery. 

“Works by Joan Jonas, Sophie Calle, Charles Lim and Club Ate will inaugurate The Lock-Up Projection Platform, transforming our Hunter Street façade and heritage precinct into an outdoor cultural space and bringing contemporary art into the life of the city after dark," she said. 

Federal member for Newcastle Sharon Claydon said this was a fantastic opportunity for Novocastrians to experience nationally and internationally acclaimed artworks. 

"Seeing these works projected onto its historic sandstone facade will be a really special experience, bringing together Newcastle's history, our contemporary arts community, and remarkable works from the national collection for everyone to enjoy," she said.

The works are, Disturbances by Joan Jonas, L'homme profonde/deep man by Sophie Calle, SEA STATE 5: drift (rope sketch) by Charles Lim and Nilalang (Lolo Ex Machina) by Club Ate. 

Police from the Port Stephens Hunter and Hunter Valley districts have released images this week of people they are searching for on warrants. 

Anyone with information about where any of these people are should contact Crime Stoppers on 1800 333 000, make a report online or contact your local police station.

"Your tip could make a big difference—thank you for helping us keep our community safe," police said.