A bomb explosion at Quetta's railway station in Pakistan has resulted in the deaths of at least 20 people and left 30 others injured, according to media reports. 

As per the preliminary reports, the explosion occurred at the booking office just moments before the scheduled arrival of the Jaffer Express, which was set to depart for Peshawar at 9 am. 

Railway officials revealed that the train had not yet reached the platform when the blast occurred, raising concerns over the potential for even greater casualties due to the usual high volume of passengers at the station.