May 16 (UPI) -- Tiffany Trump, President Donald Trump's second daughter, and her husband, Michael Boulos, announced the birth of their first child, a son, on Thursday.

"Welcome to the world our sweet baby boy, Alexander Trump Boulos," she said in a post to Instagram that included a picture of the newborn's foot.

"We love you beyond words! Thank you for coming into our lives."

View this post on Instagram

A post shared by Tiffany Trump (@tiffanytrump)