RUTH Davidson has spoken of her happiness after giving birth to a baby boy.

The Scottish Conservative leader said she and her partner Jen Wilson were “delighted” by the safe arrival of Finn Paul Davidson at Edinburgh Royal Infirmary on Friday morning, weighing in at 10lb 1.5oz.

She is the first British party leader to give birth while in office.

Ms Davidson shared the news on Twitter, writing: “Welcome to the world, little one.

“Finn Paul Davidson, born today, 10lb 1.5oz. Know that you are loved.”

First Minister Nicola Sturgeon sent her congratulations to the couple, adding: "I wish wee Finn a lifetime of happiness."

Ms Davidson, 39, previously said she was excited and daunted to start a family.

She began exploring IVF treatment with her partner Jen last year, and has been on maternity leave since the Scottish Parliament's October recess.

She said: "Jen and I are delighted at baby Finn's safe arrival. A huge thank you to the medical team at the ERI and the midwives at Leith Community Treatment Centre for looking after all three of us so well throughout the pregnancy and birth.

"I can't wait to get this little one home to enjoy some family time together."

Ms Wilson added: "It was wonderful to welcome baby Finn into the world this morning. He is beautiful and already very loved.

"Ruth did brilliantly and Finn clearly has his mother's lungs on him!"

Scottish Tory deputy leader Jackson Carlaw has stepped in to lead the party in Holyrood while Ms Davidson is off on maternity leave.

He said: "This is wonderful news. On behalf of the whole party, I'd like to offer my congratulations to Ruth and Jen on becoming proud parents to baby Finn.

"Everyone in the Scottish Conservatives will be delighted for them both and, of course, desperate to meet the new arrival.

"In the meantime, I hope Ruth, Jen and Finn get some private family time together at this most special time. We wish them all the best.”