Photograph 2: A distinct V-pattern (yellow dotted lines) was seen at the rear roller shutter of SL1 which indicates that the fire was intense at the lower section. Note the roller shutter casing at the end was partially charred (red arrow) while the metal frame located at the middle section was severely oxidized (yellow arrow).

Photograph 2: A distinct V-pattern (yellow dotted lines) was seen at the rear roller shutter of SL1 which indicates that the fire was intense at the lower section. Note the roller shutter casing at the end was partially charred (red arrow) while the metal frame located at the middle section was severely oxidized (yellow arrow).

Photograph 2: A distinct V-pattern (yellow dotted lines) was seen at the rear roller shutter of SL1 which indicates that the fire was intense at the lower section. Note the roller shutter casing at the end was partially charred (red arrow) while the metal frame located at the middle section was severely oxidized (yellow arrow).