In the deadliest terror attacks in Assam, near-simultaneous blasts had ripped through Guwahati, Kokrajhar, Bongaigaon and Barpeta on Thursday, killing 66 people and injuring about 470 others.

Bangladesh-based HuJi militants along with other jehadi outfits are suspected to be behind the explosions. Although ULFA has denied its involvement in the terror attacks, police do not rule out the hand of ULFA behind the serial blasts with help from HuJI or jehadi elements.

Of the six blasts in Guwahati, RDX was used in two of the explosions, Chief Minister Tarun Gogoi has said, adding a special task force has been set up to unearth the conspiracy behind the blasts.

Assam has witnessed massive ethnic violence since early 1980s and ULFA-sponsored insurgency but this is the first time that a terror attack in the form of serial blasts rocked the state in such a magnitude.

Curfew clamped down in Guwahati

Curfew was clamped today in worst blast-hit area of Ganeshguri, adjacent to the capital complex at Dispur, here as protesters went on a rampage forcing police to fire in the air.

The protesters had gathered near a flyover - a few metres from the blast site, shouting slogans against the government's alleged failure to provide security to the common people.

Deputy Commissioner Prateek Hajela said the protesters, turned violent and went on a rampage attacking the security personnel deployed in the area.

The police first resorted to lathi-charge to disperse the protesters but later fired in the air, Hajela said. Curfew was then clamped in the area, the site of three blasts on Thursday.

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