The Uttar Pradesh government said prima facie no terror link had been established.
UP DGP Bua Singh and Chief Secretary (Home) Satish Agarwal, visited Kanpur on Sunday and reviewed the law and order situation.
Doctors in Kanpur on Thursday called off their six-day strike against the attack on their colleagues, a day after the Uttar Pradesh government clamped Essential Services Maintenance Act against striking medicos and the Allahabad high court stepped in to resolve the deadlock.