The explosion killed at least 74 people and injured several others near the town of Rahim Yar Khan in the south of Punjab province.
Turkish authorities detained three railway agency employees suspected of negligence over the high-speed train crash in Ankara which killed at least nine people and injured 47 others.
A number of people were reportedly trapped in the wreckage and had to be pulled out by rescue teams.
Over 600 people were injured after a packed passenger train derailed in Cameroon.
The accident occurred during morning rush-hour after a train carriage run right through the station concourse.
Train crashes into bus carrying tourists, leaving three people dead in Thai capital
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