Bikaner, Nov. 5 -- An explosion damaged two concrete supports beneath the Anupgarh-Suratgarh railway line near 50 GB village in Sri Ganganagar district on Tuesday night, disrupting rail traffic for several hours and leading to the cancellation of train services on Wednesday, officials said. A team from the National Investigation Agency (NIA) has reached the site of the explosion, inspector general, Railway Protection Force, Jyoti Kumar said. The explosion occurred around 9.45 pm, leaving a crater about two feet deep and reducing the concrete supports to rubble, with their iron reinforcement exposed. Residents of a nearby hamlet, around 200 metres from the tracks, heard the blast and alerted the authorities. According to police, the incident occurred about 45 minutes after a passenger train had passed the spot. Railway officials also confirmed damage to two concrete structures and disruption to services on the section. Teams from the Intelligence Bureau (IB), the Criminal Investigation Department (CID) and the Anti-Terrorism Squad (ATS) also reached the site during the night. ATS additional superintendent of police Surendra Kumar also visited the area. A forensic team is expected to collect samples to determine the nature and intensity of the explosion. Sri Ganganagar superintendent of police Hari Shankar said, "Investigators are working to establish the intensity of the blast and identify those responsible for damaging the railway infrastructure. The material used and the motive had not been established." "The investigation is being done by the local police. Teams from the NIA and ATS have also arrived," he said. Rail traffic on the affected section remained suspended until 9 am on Wednesday to allow officials to inspect the site and carry out restoration work. Train numbers 59711 and 59712 were cancelled following the incident. The investigation is continuing. Officials have not confirmed whether the railway infrastructure was deliberately targeted....