Saturday morning UK news briefing: Today's top headlines from The Telegraph

1. Families could get rewards for healthy living in new war on obesity

Boris Johnson is to launch a government-backed rewards programme for families switching to healthier food and exercising under radical plans to tackle Britain's obesity crisis.

The scheme will monitor family supermarket spending, rewarding those who reduce their calorie intake and buy more fruit and vegetables. Read the full story.

2. Train passengers face pingdemic chaos as scores of services cancelled

Train passengers face a summer of chaos after the Government signed off mass cancellations as a result of the “pingdemic”.

At least seven major rail networks are planning to impose emergency timetables for up to six weeks due to a critical shortage of train drivers and crew. Read the full story.

3. Emily Maitlis in fresh BBC impartiality row

Emily Maitlis has become embroiled in another BBC impartiality row after suggesting the corporation's priorities are misplaced.

Ms Maitlis last year stated on Newsnight that Dominic Cummings “broke the rules” on Covid-19 travel, prompting the BBC to issue an apology and find her in breach of impartiality guidelines. Read the full story.

4. Bones found near area where missing British hiker Esther Dingley disappeared

Bones have been found close to where the British hiker Esther Dingley went missing last year.

Ms Dingley, an experienced hiker, was last seen on the Pico Salvaguardia in the Pyrenees, on the border between France and Spain, on Nov 22. Read the full story.

5. Tokyo Olympics finally kick off

Day one of the Covid-delayed Games has begun with Team GB on the hunt for medals. Read the full story.

Stay up-to-date with breaking news and the latest politics from The Telegraph throughout the day.