Beyoncé's twins have arrived and Blue Ivy now has a younger brother and sister, according to multiple reports.
Details have been kept under wraps on the twins' arrival, which reportedly happened in a Los Angeles hospital on Monday, June 12. However, according to TMZ, a "minor issue" has kept the Bey babies in for a longer-than-expected stay.
WATCH: Beyonce Reportedly Gives Birth to Twins!
Meanwhile, Mathew Knowles, seemingly scooped his own daughter with the birth confirmation in a Twitter post on Sunday, writing: "They're here! #beyonce #twins #jayz #happybirthday."
Beyoncé and Jay Z memorably announced her pregnancy in an instantly iconic photoshoot in February, which went on to be the most liked post on Instagram.
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ET has reached out to reps for Beyoncé and Jay Z for comment.
For more on the twins, check out the video below.