BBC News Channel

Image source, PA

BBC political correspondent Chris Mason contrasts the scene in Downing Street with the coalition deal reached between the Tories and the Lib Dems in 2010.

He says reporters were not invited into the garden this time, nor were there "two podiums with both leaders standing next to each other sounding chummy and friendly".

Instead, the DUP spoke first and departed, showing "in visual terms, how different this arrangement is".

Speaking in Downing Street, DUP leader Arlene Foster says her party has been in discussions over "how we can support a minority Conservative government in Parliament" and have reached an agreement.

The parties "will deliver a stable government in the United Kingdom's interest", she says, "strengthening and enhancing our precious Union".

She confirms there will be "no change to the pensions triple lock and the universal nature of the winter fuel payment" and the parties are also committed to spending 2% of GDP on defence.

There will be further financial support for Northern Ireland of £1bn over the next two years to "boost the economy and invest in new infrastructure", Mrs Foster adds.

BBC News Channel

The BBC's Chris Mason in Downing Street says that, even with the support of the DUP, the government's majority is tiny.

This means anything remotely controversial would be unlikely to survive a Commons vote and "simply had to be junked".

The length of time taken since the election to reach a deal shows the importance of the DUP's 10 MPs, Chris says.

"That could be extended to any 10 Conservative MPs who could be perceived to have a grievance about anything," he adds.

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The results of the 2017 general election have put the Democratic Unionist Party in the role of kingmakers.

The Conservatives fell short of a parliamentary majority of 326 seats, but can achieve it with the support of the DUP's 10 MPs.

The DUP have now agreed to support Theresa May in leading a minority government.

So who are the DUP's 10 MPs?

The BBC understands that the Tory-DUP deal would see the pensions triple lock and winter fuel payments remain in place.

Recently, Work and Pensions Secretary David Gauke suggested the triple lock, under which pensions rise by a minimum of inflation, earnings or 2.5%, was "unsustainable".

The Conservatives' election manifesto proposed dropping the 2.5% guarantee and making it a "double lock" instead, and also means-testing the winter fuel allowance for pensioners.

DUP chief whip Sir Jeffrey Donaldson and Conservative chief whip Gavin Williamson sign an agreement between the parties, flanked by colleagues.

Westminster Hour
Radio 4's Westminster Hour

The DUP's Sir Jeffrey Donaldson, Nigel Dodds and Arlene Foster decline to answer reporters' shouted questions, before posing with Theresa May and heading inside Number 10.

Victoria Derbyshire

BBC political correspondent Chris Mason says it should be expected that "additional money for Northern Ireland would be absolutely central" to a deal with the DUP.

However, this means "there could be clamours from Wales, from Scotland, from the English regions" for additional funding, he adds.

Meanwhile Sinn Fein and the nationalist SDLP have voiced doubts that the UK government can remain impartial in talks on restoring power-sharing in Northern Ireland.

Chris adds: "The Northern Ireland Secretary, James Brokenshire, has done his best to make the argument that the government will remain impartial."