A fire broke out inside a computer server room at the Police Logistics Office in Bangkok's Dusit district late on Thursday.
Pol Col Krissana Pattanacharoen, deputy spokesman of the Royal Thai Police, said the fire broke out inside the room on the second floor of the Quartermaster Division of the Logistics Office at 11pm.
Krissana said no one was injured.
He said officers on duty initially tried to put the fire out on their own using extinguishers but later sought help from firefighters.
The fire damaged computer server, CCTVs and an internal phone system.
The cause of the fire is unknown.