If there is a fire at the property under no circumstance should you try to put it out yourself.
You must immediately evacute the property and then contact the emergency services (999) to report the fire. After that you mut contact us by telephone.
If you have a gas leak or you can smell gas you must immediately evacute the property and then contact National Grid Gas Emergency Service on 0800 111 999.
After that you must report this issue both throught this system and by telephone.