Muhammed Amin is beside himself with grief and despair.
His brother, Naveed Memon, was inside Gul Plaza when a massive fire ripped through the densely-packed shopping centre in Pakistan's commercial capital, Karachi.
Like dozens of others, he still hasn't been found.
What should I tell my mother when I go home? What should I tell my nieces? asks Amin.
My nieces are crying for their father - they are asking me why he is late to come home. What should I tell them? How can I tell them that their father is gone?
Housing an estimated 1,200 shops across a basement, mezzanine and three floors, Gul Plaza was a wholesale market that offered a wide range of cheaply-priced products, including wedding wear, toys, decorations, bed sheets, artificial flowers and baby clothes. The city's residents would frequent it in droves, particularly ahead of festivals, weddings and other important occasions.
What started the fire is still unknown.
But witnesses say the speed at which it spread, a lack of working fire exits and the density of shoppers and stalls crammed into the building exacerbated the disaster.
Rehan Faisal, who owned a bedsheet shop, said that he was able to escape because his shop was located near one of the exits - he broke down the door to get out. He said that although his staff had heard there was a fire in one part of the market, they had initially not worried because it was located some distance away from them.
No-one knew it would spread so much, Faisal added, stating it only took about five to seven minutes for everything to burn before our eyes.
Shoiab, 19, who worked at a decorations shop, said he first heard about the fire on a lower floor at around 22:00 local time. Many customers and shopkeepers were coming up... and saying there was a fire downstairs. I was just beginning to comprehend the situation when the shop owner told me to lock up and get out, he recalled.
As the searches continue, anger is growing. Hundreds of protesters gathered around the building calling for accountability. Residents and politicians have echoed concerns over the slow response from emergency services.
Dr Abid Jalaluddin Sheikh, a senior rescue official, revealed that rescue efforts were severely hindered due to the building's precarious state following the fire.
