A court in India has acquitted four Hindu extremists accused of planting a bomb on Samjhauta Express that killed 68 people in February 2007.
Prime suspect Swami Aseemanand and two others were acquitted in the terror attack on the train, which was going to Lahore from New Delhi. The victims in the blast included 43 Pakistani citizens and 10 Indians. The identities of the remaining 15 could not be established.
Meanwhile, Pakistan has summoned the Indian High Commissioner to register a protest against the acquittal of the accused.