Abstract: A device is provided for the locking of one or more doors. In particular, the device comprises a strap, a door engaging member, and a frame. The strap has a first end which includes an outwardly extending projection for engagement with a door latch recess. The strap has a second end which is curved away from the first, and includes a stop mounted thereon. The frame is slidably located on the strap, allowing it to be moved towards and away from a door. Further, a door engaging member in the form of an adjustable bolt is provided on the frame. The frame includes slots in the walls thereof which are engageable with notches and tabs on the strap, preventing movement of the frame along the strap when the door engaging member is used to engage and lock a door.