Buffalo police are investigating a home invasion Saturday that allegedly started with a knock at the door from a man claiming to be delivering pizza.

Police said the woman who answered the door found two men, one with an AR-15 rifle, who then forced their way into her home on West Northrup Place and ordered her to lie on the floor.

The woman told police the men rummaged through her home looking for money and eventually fled with two Vizio TVs, a Droid cellphone and a MacBook Pro laptop.