Well control personnel were despatched to the Kab-101, with operations delayed by further bad weather and H2S release. Well control operations commenced with attempts to inject heavy mud followed by cement. Operations were again delayed on 13 November when a spark initiated by on-going work caused a fire to break out. The fire was extinguished the following day on 14 November at 2350 hours. A second fire broke out on 20 November, causing the collapse of the Usumacinta's derrick and major damage to the cantilever and connecting bridge. The fire was extinguished the same day with no injuries.