In Freya, you say. [This is really not good.] Judging from the sheer numbers of patients coming to my clinic from the Hel district, I'd say there was at least one other -- a moment if you would.

[There's a muffled conversation, Watson making enquiries of his staff and patients. The response is pretty unequivocal and the Doctor returns before long.]

All my patients say they saw a cannister fall to the ground that emitted a cloud of smoke on impact.