The building partially collapsed as a fire broke out at a fiber factory in Korangi Mehran Town area of Karachi on Saturday morning, reported 24NewsHD TV channel.
According to rescue officials, part of the building collapsed after severely damaged by the blaze.
Six fire tenders and two bowsers brought the fire under control after hours of efforts and now cooling process was under way.
No casualties, however, were reported in the incident and the cause of the fire could not be ascertained as yet.
Reporter: Usama Malik