I already posted here of how to use your LPG (liquefied petroleum gas) properly now to secure safety in your kitchen at home. You have to be watch out for potential hazards by checking the rubber of the house that is connected from your LPG to your stove. Make sure it is not busted or it was leaked because this would lead for a fire. If you are not sure or you are suspected that there is something wrong with that rubber. Call the supplier of your LPG.
If you suspect a leak of your LPG then switch it off, the regulator itself. And be very cautious in your surroundings. Turn all of your electronic gadgets at home, and then open all the windows and door. Be very vigilant with open flames. Do not forget to call your LPG supplier to help you.