Eric and Lara Trump welcome a baby boy

Eric Trump announced the birth of his son on Twitter. Photo / @EricTrump Twitter

There's a new member of the Trump Organisation.

On Tuesday, President Donald Trump's son Eric, 33, and his wife, Lara Trump-Yunaska, 34, announced the birth of their first child, Eric "Luke" Trump, on Twitter.

.@LaraLeaTrump and I are excited to announce the birth of our son, Eric "Luke" Trump at 8:50 this morning. pic.twitter.com/b8zRSktcd8

— Eric Trump (@EricTrump) September 12, 2017

This makes grandkid number nine for President Trump, who, according to the new parents, was the first to "leak" the news of Baby Eric's impending arrival.

Congratulations to Eric & Lara on the birth of their son, Eric "Luke" Trump this morning! https://t.co/Aw0AV82XdE

— Donald J. Trump (@realDonaldTrump) September 12, 2017

Eric Trump's siblings were quick to welcome the bundle of joy via social media. Ivanka Trump wrote, "Welcome to the world, baby boy. I can't wait to meet you ."

Donald Trump Jr. tweeted his well wishes to the new parents, also taking the opportunity to mess around with his younger bro. "Congrats buddy. Welcome to the club," he wrote, adding, "Now that the niceties are out of the way it's older brother revenge for that drum set to my kids."