Police reports claim a fire started at one of the shops and then spread to the other, destroying the shops.
It started inside the Welcome Trading premises and rapidly spread to Kakaruk Trading as well.
The Kimbe Fire Service was alerted by police in the morning on Thursday but ran out of water to hose down the flames.
Another two buildings, the Wal mart Shop and Able Computing, who share with Police Savings and Loans office, were saved from the fire.
Police were on full alert after the fire, controlling possible looters and opportunistists.