What caused that big fire at a hotel that was being demolished in Ocean City on Friday? It was a blowtorch. Fire officials say a blowtorch that was being used..ironically enough…to remove fire escapes started the big fire at the Bellevue Hotel on Friday. The hotel was being demolished for a second day when the fire started and threw thick gray smoke over parts of the city. There were no injuries. Ten different fire departments responded to the blaze.