US Transport Secretary Pete Buttigieg and husband welcome child

Pete Buttigieg, the first openly gay US cabinet member, on Tuesday announced he and his husband were becoming parents.

"For some time, Chasten and I have wanted to grow our family," Buttigieg, the 39-year-old US transportation secretary, tweeted.

"We're overjoyed to share that we've become parents! The process isn't done yet and we're thankful for the love, support, and respect for our privacy that has been offered to us. We can't wait to share more soon."