Esther Webber
BBC News, London

Speaking from Paris where he is attending a world leaders' climate summit, London Mayor Boris Johnson told BBC Radio London that the prime minister was right not to have apologised for describing opponents of air strikes as "terrorist sympathisers". 

It is "unpardonable" to seek to explain or justify terrorist acts in this way, he continued. 

Carole Walker
Political correspondent

Labour's deputy leader Tom Watson says the party's win in the Oldham and Royton by-election was a "decisive victory" with the party increasing its share of the vote. He says "if it was a referendum on Jeremy Corbyn then he has won it".

Mr Watson tells Today that the complaints about the electoral process by UKIP leader Nigel Farage "seems like sour grapes to me". And says if he had evidence he should have raised concerns sooner.

Mr Watson says he hopes Labour MPs would look at the result and see what the party could achieve when it focused on issues which effect working people such as the cuts to tax credits. He says it was a good result for Jim McMahon but also a good result for Jeremy Corbyn and MPs should respect the decision of party members.

He says the majority of Labour MPs do respect Jeremy Corbyn and what he stands for, but he says "some have perhaps gone too far" with comments to the media which were "deeply unhelpful".

Today Programme
BBC Radio 4

Carole Walker
Political correspondent

Image source, PA

The UKIP leader Nigel Farage says his party will file a formal complaint about what he called "abuses" of the electoral process in the Oldham and Royton by-election. 

Speaking on BBC Radio 4's Today programme, he says he has seen "things which should not be happening in a modern democracy" with people turning up with "bundles of postal votes".   

He says he was not saying any of this would have changed the result but that Labour would have had a "massively reduced" majority.  

Mr Farage says "some of the things we've seen before in Birmingham and Tower Hamlets were happening in Oldham yesterday". 

Mr Farage says some of the voters could not speak English and had never heard of UKIP or the Conservative Party. 

He says that in modern Britain after mass immigration "it means that in some of these seats where people don't speak English but they are signed up for postal votes effectively the electoral process is now dead". 

He says "we will file a formal complaint about the abuses that our people saw yesterday".  He says they had seen some boxes were 99 percent of the votes were for Labour and this "does not seem to be consistent with modern liberal democracy."

Today Programme
BBC Radio 4

On becoming leader of the Labour Party Tom Watson says "I never ever want to be leader of the Labour party".

He says he is "very happy with deputyship"

He says he is "enjoying friendship and comradeship" of current leader Jeremy Corbyn despite the pair having some disagreements "but that's politics" he adds.

He says he "will defend him to the last".

Today Programme
BBC Radio 4

Tom Watson, deputy leader says allowing a free vote for the Labour was the "right thing to do". 

He says it reflects the new way of doing politics by not applying "rigid political pressure" on MPs, adding voting on military action is the most "solemn" issue an MPs votes on. 

He agrees with Shadow Chancellor John McDonnell that the Conservative Party should also have been give a free vote. 

Speaking about the applause received by Hilary Benn in the Commons, Mr Watson says he "made a very cogent case for increased military action" and says he convinced him to vote for air strikes.

He adds he was "very grateful" to Mr Corbyn for "allowing permission" for MPs to express themselves.

Deputy Labour leader Tom Watson tells BBC Breakfast there were two factors behind the party's "great" by-election victory.

Labour leader Jeremy Corbyn will visit Oldham later.

He's due to speak with newly elected MP Jim McMahon before going to privately thank the local Labour members. He will then head back to London.  

Mr Farage also said his concerns about the voting in the election in Oldham West and Royton meant that "effectively the electoral process is now dead".