A Brooklyn couple claims that Beyonce's security stopped them from visiting their preemie twins, as tales of the Grammy winner's ultra-tight security around brand-new baby Blue Ivy Carter begin to leak to the press. Beyoncé and Jay-Z gave birth to their little girl on Saturday night, January 7, in New York's Lenox Hill Hospital, and Neil Nash-Coulon tells The Insider that Beyoncé and Jay-Z's bodyguards were treating the sixth-floor neonatal intensive care unit like they owned it, repeatedly barring the non-celebrity couple from seeing their own premature newborn twins. "The security presence was kind of heavy, and they weren't really gracious with their actions towards people; they were just kind of hammering people wherever they wanted them to go," Neil tells The Insider's Christina McLarty. He says that at one point, when they were attempting to leave the hospital, they were informed by security, "You can't leave for 20 minutes because we're using the hallway to transport hazardous materials."