The clean-up continues at a Brazil nightclub where over 230 people died in a devastating fire.
For the first time, police released these pictures from inside the club - showing the scorched remains of the building where a flare ignited the blaze.
Personal items are still being gathered.
Students in Santa Maria have been demonstrating outside the mayor's office, as anger grows over the tragedy.
Many call for tougher regulation.
SOUNDBITE: STUDENT, CYNTHIA FORENCE, SAYING (Portuguese):
"Santa Maria has a young population and we don't have safe venues. The venues are open to the public under inappropriate conditions, without any type of supervision - they are ticking time bombs, anything can happen at any time."
Authorities are questioning the club's owners and two members of a band, whose performance led to the blaze.
Police say the club should not have been open to the public.
Inside the burned-out Kiss nightclub (1:09)
Jan. 30 - Police release images of the burned-out Kiss nightclub in Brazil where 234 people died, as residents protest around the city. Sarah Charlton reports. ( Transcript )