News broke on Sunday that Beyoncé and Jay Z have welcomed their twins. (Read more here)

TMZ reports that the boy and girl were born on Monday in Los Angeles.

They have remained in hospital due to a "minor issue" and doctors were not comfortable with sending them home just yet. 

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According to the report Beyoncé is doing okay.

Meanwhile, Beyoncé's father Matthew Knowles took to Instagram to wish the twins a happy birthday.