Israel Police interrogated several people involved in planning and constructing the Tel Aviv underground parking garage which collapsed in September 2016.
Six workers died and dozens of people were injured in the collapse.
Police investigators arrived at the scene immediately after the collapse, beginning interrogations and investigations to determine the cause as soon as all the victims had been rescued.
Haifa's Technion was asked to help create a report on the cause of the collapse.
Recently, responsibility for the first section of the report was handed back to the investigators. Police investigators are now interrogating those involved in planning and constructing the underground parking garage.