Fury as Chilcot says he STILL doesn't know when he will publish his review into the Iraq war

• Sir John Chilcot reveals the Maxwellisation process is now complete
• But it will take more time to work out when report can finally be published
• Inquiry which was due to last a year has already gone on for six years 

By Matt Chorley, Political Editor for MailOnline

Published: 05:12 EST, 9 September 2015 | Updated: 10:19 EST, 9 September 2015

The head of the long-delayed inquiry into the Iraq war risked sparking fresh anger today when he admitted he still cannot set a date for it to be released.

Sir John Chilcot said the final submissions from people he plans to criticise in the report had now been received but he cannot say yet how much more time he needs.

David Cameron and the families of solders killed during the conflict have expressed frustration and anger at the snail-like pace of the inquiry which has last longer than the conflict which began in 2003. 

Sir John Chilcot said the final submissions from people he plans to criticise in the report had now been received but he cannot say yet how much more time he needs

The inquiry was supposed to last around a year when it was set up by Gordon Brown in 2009.

But six years on there is still no sign of it emerging, more than a decade after Tony Blair ordered troops into Iraq to topple Saddam Hussein. 

In a letter released today, Sir John said that he had now received the last Maxwellisation response.

However, he warned that further work will be required to evaluate the 'detailed and substantial' submissions and determine how much more time would be needed to finalise the report, he said.

'As soon as I am able to, I will write to the Prime Minister with a timetable for the publication of the Inquiry's report,' wrote Sir John to the foreign affairs select committee. 

But critics said that the repeated delays were unacceptable and answers were needed to why Britain was taken into the war and its aftermath.

SNP Defence spokesperson Brendan O'Hara said: 'The Chilcot Inquiry was demanded because people wanted answers, yet six years and £10 million later we still have nothing. 

'It was overdue six years ago and the fact that there is still no report is completely unacceptable. 

 'The report has been plagued by continuous delays, yet David Cameron has claimed he has been helpless during this entire process, to then later say he will act. Answers are long, long overdue. 

'It should be remembered that Cameron himself voted for the war in 2003. He has a moral obligation to get to the bottom of the reasons for this disastrous conflict a full twelve years later'.  

In a letter released today, Sir John said the Maxwellisation process had been completed but he could still not say when his report will be finished

There is still no sign of the report emerging, more than a decade after Tony Blair ordered troops into Iraq to topple Saddam Hussein

Sir John has been threatened with legal action from families of Iraq War casualties over his failure to set a timetable for publication.

Roger Bacon, whose son Major Matthew Bacon was killed in Iraq in 2005, last month said he was 'disappointed' Sir John Chilcot has not revealed when he will publish the Iraq report, adding: 'I'm not sure he is able to understand our anguish.' 

David Cameron last month said he shared the families' 'immense frustration' and urged the inquiry chairman to 'get on with it'. 

Downing Street has always stressed that the timing of the report's publication is a matter for the independent inquiry.