On the 18th of November, 1987 at approximately 19:30 a fire broke out at London’s King’s Cross St. Pancras tube station. Thirty-one people died and another one hundred were injured.
Many Londoners defied the Underground’s smoking ban, with many lighting up before leaving the station. It was eventually concluded the fire was sparked by one of the many matches thrown down the wooden escalators leading out of the station.
In Times Gone By... 
God, I remember this as if it were last week as I had friends travelling through there at the time. Thankfully, they were on the train before. Horrendous.