Initially dispatched as an A risk [highest 'risk' category] which brings 3 pumps an aerial and the district officer. It was visible from comcen though, which made it a confirmed job... which for an A risk is automatically second alarm, a further 3 pumps, second aerial, BA/HAZMAT tender & ICV [comms]. The DO then upgraded it to third alarm en route [another 3 pumps], as it was feared it was the housing block, so man power would be needed for evacuations considering the situation of some of the patients...
So 9 pumps, 2 aerials, BA support, ICV...
Along with those trucks there would have been various safety officers, commanders, etc...