The torpedo struck without warning. HMCS Clayoquot was returning from an anti-submarine sweep in the approaches to Halifax harbour when its stern rose into the air, mangled by the detonation of a German T-5 acoustic homing torpedo. The men aboard felt two concussions, the second likely being depth charges stored on Clayoquot’s stern set off by the torpedo. Whatever the details, the explosions were devastating for the small Bangor class minesweeper. A grainy photograph of the doomed ship shows the stern blasted vertical, the ship listing to starboard. Clayoquot lasted barely ten minutes after being hit, just long enough for all but eight of her crew to escape. The worst fate befell two young officers trapped in the port forward-cabin. These men called out through a port hole for axes to chop their way to freedom, but all the axes were underwater. The merciless sea closed around them as the ship vanished.
McLean, Douglas M. "A Loss of the HMCS Clayoquot." Canadian Military History 3, 2 (1994)