PHILADELPHIA -- Authorities say a California woman was arrested at Philadelphia International Airport after she made threats on board a flight arriving from London.

WPVI-TV reports police arrested Hannah Shiner of Roseville, Calif. on Wednesday afternoon. Investigators say she threatened the flight crew and passengers, saying she'd blow up the plane.

Police have not said what they believe prompted her statements, which the station reported including references to Osama bin Laden.

The Delaware County district attorney's office says Shiner faces charges of disorderly conduct and making terroristic threats. Charges are expected to be filed Thursday.

It was not clear if Shiner had an attorney.