Formula 1 driver David Coulthard in mourning after his sister dies of suspected heart attack

Scottish Formula 1 star David Coulthard admitted he was in 'huge shock' today after his younger sister died of a suspected heart attack at the age of 35.

Lynsay Jackson - mother to ten-month old baby girl Emilie Anne - is understood to have endured cardiac failure at around 4am yesterday.

The trained nurse, who until relatively recently ran the family’s well-known motoring museum, is understood to have gone to bed complaining of stomach pains before the attack.

Family: Lynsay Jackson (second right) pictured with her husband Will (right) on their wedding day. She is pictured beside her brother David Coulthard and his fiance Karen Minier

Coulthard said in a statement today: 'I'd like to first take this chance to thank everybody for their overwhelming support over the last two days, it means a huge amount to my family and I.

'It's obviously come as a huge shock to us all and we're still trying to come to terms with it all. I'd please ask that my family's privacy is respected during this very difficult time.'

Mrs Jackson’s parents, Joyce, 65 and Duncan, 66, from Twynholm in Dumfries and Galloway, were on holiday in Australia when the incident occurred and were understood to be flying back to the UK.