Last year in the UK, a fifth of people arrested for terrorism offences were under 18.  Counter-terrorism experts warn that outlawing social media for children is a matter of national security. So what are children really watching online?

A consensus is growing among parents, police and campaigners that government must act now to rein in tech companies and restrict access to harmful online content that is destroying young lives

‘Near-death experiences change the way people look at life’ says government adviser as prime minister comes out swinging on Europe, social media ban and defence spending

The prime minister is hoping to curry public favour by easing outdoor licensing rules for pubs during the tournament

With a leadership election on the horizon, there are discussions among the backbenches about how potential contenders might look to reshape and re-energise the UK's growth. The Observer's political editor Rachel Sylvester speaks with economics editor Ben Zaranko about what the various approaches might look like.

Andy Burnham must win back voters lost to Reform if he is to be returned as an MP. But that’s unlikely to impress the middle-class Labour members who will choose the next leader

The home secretary and NEC chair is a powerful party figure who is among those pushing for Keir Starmer to set out a timetable for leaving No 10

The ex-health secretary and the Greater Manchester mayor are said to have spoken about Labour’s local elections woes and the chance to lead the party, but what kind of prime ministers would they be?

The former health secretary condemns Brexit as a ‘catastrophic mistake’ that needs to be reversed in a scathing attack on Keir Starmer’s leadership

Critics including Richard Branson say Home Office ban on visas for ex-offenders is short-sighted and bad for the economy

Although he vows to go on, the prime minister has lost the support of his cabinet and much of the country

The prime minister is missing opportunities by allowing political caution to stall vital reforms in housing, health and trade

The prime minister sets out his project of ‘renewal’, which includes a scheme to open up Europe for young people, admits Labour needs to act on its election drubbing, and questions donations to Reform and Nigel Farage

The elections look set to create ominous headlines for Labour. In the locals they could see massive losses across the country. But in Wales and Scotland voters go to the polls to determine who will run the Senedd and Holyrood. It means the results might not just determine Keir Starmer's future, but the future of the United Kingdom.   Observer editor-in-chief James Harding sits down with political editor Rachel Sylvester to unpack what the elections could mean for Keir Starmer, Labour and the United Kingdom.   Producer: Amalie Sortland

Labour is facing a meltdown at the polls today, but the PM has made it clear he’s not going anywhere. That leaves his opponents with a choice: pull the trigger on a challenge, or bide their time

As communities across Britain unite in feelings of abandonment and betrayal by the political classes, Westminster’s two-party system has never looked so weak

The writer has questioned the Green leader’s comment about the ‘perception of unsafety’ among British Jews

On a stroll around Styal jail in Cheshire, the prisons minister discusses jobs for ex-offenders, support for women inmates and why he has no political ambition

The prime minister has all the intellectual qualifications for the job but he lacks the more emotional skills required to succeed, Rachel Sylvester writes

Starmer pledged to boost vocational education as an antidote to youth unemployment. College heads want him to keep this promise.