Can torpedo tubes fire while a submarine is diving?

Could a submarine's midships torpedo tubes be fired while the boat was in the process of diving?

Not safely during the transition; the tube must be in a known surfaced or submerged pressure state before firing.

A submarine can fire from a stable surfaced or submerged condition, but not casually while crossing between them. The tube and surrounding water pressure must be equalized before opening and launching. During the transition, the boat may be partly in or out of the water and the required pressure state is uncertain. Getting the calculation wrong can flood and sink the submarine, so launch procedures are tied to a settled operating condition.