In a joint operation carried out by intelligence agencies, the Delhi Police's special cell arrested four terror suspects here.
According to sources, the four were planning to carry out terror strikes in the ongoing Ardh Kumbh in Haridawar. The arrested suspects' links with the Pathankot terror attack is being probed.
The suspects were also planning to strike Delhi as they had carried out reconnaissance of malls in the national capital.
The Delhi Police special cell has brought the suspect to Delhi.
The interrogation is still on.