BBC Radio 2 DJ Jo Whiley and a team of 30 have been working to raise money in two separate charity events in memory of a young man who died of sudden death syndrome.

Watford Boys Grammar student, Jannik Lam, was just 21 when he died of the undiagnosed heart condition in January 2015.

The Lam family took part in The Heart of London Bridges Walk last month to raise awareness of the devastating heart condition that claims the lives of 12 young people every week in the UK.

The London Bridges Walk, organised by the Cardiac Risk in the Young charity (CRY), has been running for 10 years and saw 1,500 people of all ages and abilities take part in the 6 mile walk.

Around 30 of Jannik’s friends and family members took part this year, raising approximately £1,500 for CRY charity.

Birte Lam, 56, of the Reeds Estate said: “It’s a very emotional day because you walk and you realise just how many young people die from this condition, which is really hard but it’s so important to raise awareness.

"Since Jannik’s death, as a family we encourage young people to get a screening.

"A lot of the money raised from the walk goes towards funding the free screenings that CRY offer to people aged between 14 and 35.

"All of Jannik’s friends and family have been checked.”

As well as The London Bridges Walk, BBC Radio 2 DJ, Jo Whiley, 51, will be taking part in the gruelling Prudential RideLondon-Surrey 46 in Jannik’s honour.

Jo is a friend of Jannik’s girlfriend and said: “He was fit and healthy and no one had any idea that he had cardiac issues."

Mr Lam was taking his last year at the University of Nottingham in 2015 when he collapsed and died from a previously undiagnosed heart condition on January 27.

According to Ms Lam, the university said he was one of their top students. They awarded Mr Lam with a first-class honours in Mechanical Engineering in July 2015, six months after his death.

Dr Steve Cox, chief executive of CRY said: “We are immensely grateful to the Lam family for signing up to our ‘Bridges Walk’ and know that so many people from their local area were supporting them every step of the way.”