Beyonc Knowles had a "military like" get away from her New York hospital today.

The 30-year-old singer gave birth to baby Blue Ivy Carter on Saturday and has been recuperating at Lenox Hill Hospital over the past few days.

But it is reported that the Single Ladies singer left the facility around 1.30am Tuesday morning in a cavalcade of several blacked-out SUVs.

Beyonc was apparently accompanied by rapper husband Jay-Z and they made a speedy exit from the hospital's back loading dock.

An eyewitness told New York Daily News that the exit consisted of elaborate car choreography to ensure security and also to outwit waiting photographers.

"It was very precise, very military-like," one witness said. "Immediately, security personnel began leaving the hospital."

First pictures of Blue Ivy are speculated to fetch over $1 million.

The music couple released a statement yesterday saying that they were in "heaven" following the birth of their first child.

"She was delivered naturally at a healthy 7lbs and it was the best experience of both of our lives. We are thankful to everyone for all of your prayers, well wishes, loves and support," the message read.