A Palestine Action activist who has been on hunger strike for 69 days is at risk of death, the terror group has warned.

Heba Muraisi, 31, has lost 10kg, is struggling to breathe and is suffering from headaches after turning down food at HMP New Hall in Yorkshire following alleged break-ins and criminal damage.

Five of the original eight protesters who began the hunger strike have given up over health fears.

Muraisi, who had worked as a florist and lifeguard, is still not eating as she demands immediate bail for her alleged crimes. 

Lawyers for the prisoners claim they will have spent more than a year in custody by the time of their trial.

Prisons minister Lord Timpson said they are charged with 'serious offences including aggravated burglary and criminal damage' and remand decisions are made by independent judges.

Muraisi is now at serious risk of permanent damage to her health and death, a leading neurologist has claimed.

The 31-year-old 'is very gaunt' according to a friend, who added her 'cheekbones are very prominent' and she is 'physically exhausted'.

Palestine Action activist Heba Muraisi, 31, has been on hunger strike for 69 days and is at risk of death

Pictured: Supporters of the Palestine Action hunger strikers protest in Parliament square last month

'I think she's lost over 10kg now. She looks very different to the photographs that you'll see of her,' Amareen Afzal told Sky News.

'She is constantly suffering with headaches and lightheadedness. Sometimes she gets so lightheaded she feels nauseous and that's quite common.' 

Muraisi also finds sleeping on one side of her body a struggle because it is too painful and is aware her body 'could fail at any moment'. 

Muraisi's next of kin, Francesca Nadin, said earlier this week she was having difficulty breathing and thinking clearly.

 'It is really concerning. But mentally, she is still strong and able to laugh and joke. 

'We just don't know when that deterioration will come.'

She noted Muraisi has surpassed the time the IRA's Bobby Sands, who died while imprisoned in Northern Ireland in 1981, was on strike.    

Eight activists have taken part in Palestine Action's strike, which is the largest in the UK since 1981 when 10 IRA prisoners died. 

There have been numerous instances of the protesters being rushed to hospital since the strike began over two months ago, with just three still participating and one turning their full strike into an intermittent fast due to an underlying health problem. 

Kamran Ahmed is one of the three Palestine Action supporters who remain on hunger strike