A mother from Maryland has given birth to a set of rare quadruplets- but, that's just the beginning of this story. Three out of the four boys are identical!
According to hospital officials, there are fewer than 100 documented cases of "identical triplets plus one" in the United States.
The boys were born 11 weeks premature in January at Greater Baltimore Medical Center in Towson. The parents plan to introduce themselves and their boys at a news conference Friday.