Eerie footage shows flashing blue lights shining into the windows of houses boxed in by the warehouses - as an ominous warning rings out. A flashing blue light from one of the warehouses, disturbing residents in Tyldesley, Wigan. // Eerie footage shows flashing blue lights shining into the windows of houses boxed in by four enormous warehouses - as an ominous security warning rings out. // Eerie footage shows flashing blue lights shining into the windows of houses boxed in by four enormous warehouses - as an ominous security warning rings out. // Eerie footage shows flashing blue lights shining into the windows of houses boxed in by four enormous warehouses - as an ominous security warning rings out.