A Blue House official made the remark while discussing analysis of debris recovered from the Namoo, including components that appear to be an aircraft engine.
The official said investigators will continue probing to identify the attacker, determine the precise aircraft model and establish its physical dimensions.
Earlier, some media outlets reported that recovered debris was tentatively identified as the engine of an Iran-made Shahed-136 drone. The Foreign Ministry, which is leading the probe into the Namoo strike, denied that claim and said it would clarify the facts through further analysis.