Newspaper headlines: Prison riot, Putin position, soldiers accused, electricity fines and Jagger baby.
The Mail says the inmates who took over Birmingham Prison on Friday made a "mockery of the justice system" by gloating about the disturbance on Twitter.
According to the Mail, official records were set on fire.
The Sun believes the trouble may have started after the hot water and a TV aerial stopped working.
The Times says there is a suggestion that delays in healthcare appointments also caused anger.
The Daily Mirror understands that more than 600 inmates were involved, and the Star reports that scores were being settled over drugs debts.
The Telegraph and the Guardian carry opinion pieces on Russian President Vladimir Putin.
The Telegraph's Moscow correspondent, Roland Oliphant, writes that Russia, rather than Syria, announced the end of the battle in Aleppo, and that Mr Putin is working with Turkey for a "total ceasefire".
With neither the US nor the UN involved, Oliphant takes the view that Russia has displaced the US as the power broker in the Middle East.
The Guardian's foreign affairs columnist, Simon Tisdall, believes Russian air and naval bases will stay in Syria, although Mr Putin may wind down military involvement in the war while keeping President Bashar al-Assad "under his thumb".
George Osborne has told the Times that he did not listen enough to the British people when he was chancellor.
He says in an interview that he was very focused on unemployment and productivity figures in order to revive the economy.
Mr Osborne admits that people wanted more, "to feel that their views are understood and their voices heard".
He also tells the Times that we have moved to a politics of identity rather than a politics of the economy, and the Conservatives are best placed to understand this.
The Daily Mail reports that two former members of the Parachute Regiment, who will be prosecuted for the murder of a member of the IRA, had twice been assured that they would not be "hauled before the courts".
They are accused of killing Joe McCann in 1972.
The Public Prosecution Service, which announced the decision on Friday, said it was reached following an objective and impartial application of the test for prosecution.
The Telegraph believes the case raises the prospect of dozens more troops who served in Northern Ireland being charged.
The Financial Times says it has seen a letter "threatening" electricity generating companies with fines and criminal prosecution if they are caught trying to manipulate wholesale energy markets.
The FT understands the warning this week was made by regulator Ofgem after it received reports of suspicious activities.
The paper says the potential financial rewards for such manipulations are heightened during the winter months when higher wholesale prices feed through to bills paid by households and businesses.
Pictured on the front page of the Mail is one-week-old Deveraux Octavian Basil Jagger.
The Sun uncovers the significance of two of the names of Sir Mick Jagger's eighth child.
Basil was the name of the Rolling Stone's late father, who was also known as Joe, and Octavian is Latin for "born eighth".
But paper draws a blank on Deveraux which is a town in France.