Ciara has announced the birth of her first child, Future Zahir Wilburn.

The RnB singer, 28, shared a snap of one arm of the baby boy - born on Monday - on Instagram.

She captioned the picture: "FUTURE ZAHIR WILBURN 9lbs 10oz May 19 2014."

The baby is the first that Ciara and Atlanta rapper Future, born Nayvadius D Wilburn, have together.

The pair have been dating since late 2012 and announced their engagement last October.

Ciara previously told Us Weekly that it was "easy" to select her baby's name.

"I went with what felt right in my soul and my gut. I didn't second guess it," she said.

She also told how she received mothering and pregnancy tips from Kim Kardashian, who had a child with Kanye West last June, adding: "We [go] over really personal stuff from the woman's side of things."