A Mattapan woman is being held without bail after prosecutors say she attempted to enter the Suffolk Superior Court with a loaded handgun with a defaced serial number.

“I don’t know anything about the gun in my bag,” Octavia Kelly, 22, allegedly said at around 9:55 a.m. Thursday when police and court security officers detained her after a gun was allegedly detected inside a clutch-style handbag inside another bag she had placed on the security conveyor belt.

The bag also included identifying objects including a debit card and an EBT card in Kelly’s name, according to a Suffolk District Attorney’s office statement.

She was charged in the nearby Boston Municipal Court with possession of a firearm without a license, possession of ammunition without a license, possession of a firearm with a defaced serial number and illegal possession of a loaded firearm. Judge John Garland ordered Kelly held without bail pending a dangerousness hearing scheduled for Jan. 10.

Kelly told police she had come to the courthouse to support her boyfriend, Wendell Morris, 33, who himself was being arraigned that morning on firearms charges. The DA statement did not state the make or model of the handgun.

The incident comes a week after Lorenzo Beechman, 36, was arrested after allegedly attempting to carry a loaded Hi-Standard, Model B .22 caliber pistol through Boston Logan International Airport security.

“In both of these cases the security equipment and the operating personnel did precisely what they are supposed to do—detect and secure dangerous items, in both of these cases loaded guns,” Suffolk DA Kevin Hayden said in a statement.