CHANDIGARH, July 22: The Punjab police today claimed a breakthrough in the two bomb blast cases at Pathankot with the arrest of Jammu-based Khalistan Zindabad Force (KZF) deputy chief Attarjit Singh.

In the two blasts which took place in buses on April 6 and June 6 last, 11 persons were killed and 23 injured.

DGP PC Dogra said Singh, who was arrested from Kathwala bridge near Pathankot yesterday, had masterminded the two blasts. However, he did not plant these bombs, but had supplied the RDX.

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