Firemen and policemen investigate the scene where Berlin city train (S-Bahn) derailed, Aug. 21, 2012. Five people were injured as the train derailed between the Tegel and Schulzendorf train stations.

An S-Bahn city train derailed between the Tegel and Schulzendorf train stations in Berlin, Germany, Aug 21.

Officials and locals gather around the fallen compartments of Doon Express, a passenger train which derailed in Jaunpur, Uttar Pradesh state, India on Thursday. According to news reports at least five people were killed and about fifty others injured after the passenger train which was traveling from Howrah station, near Calcutta city, to Dehradun in the state of Uttarakhand derailed.

A volunteer extends a helping hand to a trapped passenger, who's hand can be seen, inside a fallen compartment of Doon Express, a passenger train which derailed.

Officials inspect the wreckage of the Doon Express.

A Via Rail train rests across the tracks after a derailment in Burlington, Ontario, Canada, Feb. 26. Three people are confirmed dead with reports of as many as 60 trapped.

Emergency workers and people work to help passengers from the wreckage of train after two carriages from a high-speed train derailed and fell off a bridge in Wenzhou in east China's Zhejiang province July 23.