Fire broke out on a moving train in a tunnel in the west of Hong Kong yesterday morning, forcing evacuation of about 650 passengers. The incident occurred inside the Tai Lam tunnel in the New Territories shortly after 9am as the train was heading from Tin Shui Wai to Mei Foo station in the west of the New Territories. Smoke reportedly poured out of one of the carriages of the train. Evacuation took about 30 minutes in the dark tunnel. Four men and five women felt sick and were sent to a hospital nearby. The Environment, Transport and Works Bureau has ordered the Kowloon-Canton Railway Corporation to submit a report. The bureau has also asked the corporation to check power-supply equipment of all trains of the same model. The Rail Inspectorate is investigating the cause of the incident and will ensure that the incident was not caused by failure of equipment inside the tunnel before allowing resumption of West Rail service at Tai Lam Tunnel section. Initial investigations blame the fire on an oil leak from a transformer on the rooftop of the affected carriage, the corporation said.