The Criminal Investigation Department (CID) has recovered 10 digital video recording (DVR) machines from the IT room of the BM container depot at Sitakunda in Chattogram.

The CID team collected information and pictures and the burned DVR machines from the IT room on Saturday.

A total of 118 CCTV cameras were installed in the depot area for monitoring, most of which were damaged during the explosions, said CID inspector Mohammad Sharif.

"Though most of the machines were burned, we collected them and handed them over to Sitakunda police. Now we will try to retrieve the information from the machines by experts ," he added.

Meanwhile, the cleaning activities of the debris inside the container depot are going on to make it functional again.

According to sources, "the debris and the damaged containers are being removed by using cranes, excavators and bulldozers."

Depot authorities are removing these with their own manpower and equipment, sources added.

Earlier, on Saturday night, at least 46 people were killed including firefighters and over 200 injured in a devastating fire and explosions at the BM container depot in Sitakunda.