Jenna and Henry Hager

WASHINGTON - Former President George W. Bush and his wife Laura became new grandparents Saturday when their daughter, Jenna Hager, gave birth to a baby girl named Mila.

"Laura and I are thrilled to announce the birth of our grandchild, Margaret Laura 'Mila' Hager. Mila, daughter of Jenna and Henry Hager, is named for her grandmothers," Bush said in a statement. "We met our beautiful granddaughter today. Jenna and Mila are healthy. And our family is elated."

Mila, the Bush couple's first grandchild, was born at 8:43 p.m. Saturday in New York City.

The Bushes will celebrate the dedication of the George W. Bush Presidential Center at Southern Methodist University in Dallas, Texas on April 25.

ABC News' Justin Weaver contributed to this report.