The Jokela rail accident occurred on 21 April 1996, at 07:08 local time (04:08 UTC) in Tuusula, Finland, approximately 50 kilometres (30 mi) north of Helsinki.

Four people were killed and 75 injured when express train P82 from Oulu, bound for Helsinki, derailed in heavy fog.

Because of heavy fog and high speed, the driver was unable to see or react in time to the distant signal that warned about a divergent routing with a turnout speed limit of 35 kilometres per hour (22 mph) ahead.

Moreover, the printed notice about the track diversion, the so-called weekly warning, was confusingly written.

Upon noticing the signal, the driver made an emergency brake application but could only decrease the speed to 124 kilometres per hour (77 mph) before the train entered the turnout.