Parents have been advised to prevent children from being outdoors until sunset
A police official was also injured in a shootout during the raid on the house in Afarkhola Patertek on Saturday, the home minister told reporters.
He came to the area where the raids were underway around 4pm.
"I am sure the person whose title or alias or whatever name is Akash. He has been leading the militants since the killing of Tamim Chowdhury. He has been killed here. He is one of the seven killed," Kamal said.