Police made four more arrests in New Orleans prison break case, bringing the total to 11. Authorities continue search for fugitive Lenton Vanburen and others.

The 10 inmates who broke out of a New Orleans jail in a stunning overnight escape last week used electric hair trimmers with multiple clipper blades to help cut their way through the cell walls, a source with direct knowledge of the investigation told CNN.

Most recently, a fellow inmate was charged with collaborating with the escapees from within the New Orleans jail.