build 60 new ICE trainsets for service between Moscow and Saint Petersburg, Russia; the new equipment is expected to enter service in 2007. KCR Ma On Shan Rail opens in Hong Kong. December 28 – Shenzhen Metro begins operation in Shenzhen, China. Unknown date events Chicago Transit Authority installs a new electric third rail along the Yellow Line to replace the aging overhead trolley wire dating from the pre-1963 Chicago North Shore and Milwaukee Railroad; this eliminates CTA's last stretch of trolley wire operation. Metro-North Commuter Railroad Company retires the last of the electric multiple unit passenger cars built by Pullman-Standard for the New York Central in 1962–1965. The cars are replaced with new cars built by Bombardier Accidents February 6 – February 2004 Moscow metro bombing – A male suicide bomber killed 41 people near Avtozavodskaya subway station on the Zamoskvoretskaya Line in Moscow. February 15 – The Tebay rail accident occurred when four railway workers working on the West Coast Main Line were killed by a runaway wagon near Tebay, Cumbria, England. February 18 – Nishapur train disaster: A train carrying a convoy of petrol, fertiliser, and sulfur derails and explodes in Iran, killing 320 people. April 22 – In the Ryongchon disaster, a flammable cargo explodes at the railway station in the town of Ryongchŏn, North Korea, near the border with China; the explosion occurs only a few hours after North Korean leader Kim Jong-il passed through the station en route back to the capital from a secret meeting in China. May 31 – A fire erupts in one of the Seattle Center Monorail trains; of the 150 passengers aboard at the time, only 5 required treatment for minor injuries and no deaths occurred. June 17 – The Karanjadi train crash was the accidental derailment of a passenger train at Karanjadi, a village in Maharashtra, India, on June 17, 2004. 20 people were killed and well over 100 injured in the crash, which was the result of heavy monsoon rains. October 23 – The Chūetsu earthquake, 6.8 magnitude, in Japan causes the first derailment of a Shinkansen train; the train was traveling 200 km/h (125 mph) on the Tokyo-Niigata line, but no fatalities were reported. November 6 – Seven people die in the Ufton Nervet rail crash in Berkshire, England. November 16 – The northbound high speed tilt train Spirit of Townsville from Brisbane, bound for Cairns,