Indefinite night curfew was clamped along the Assam-Meghalaya border in Goalpara district.
Gogoi, who is in London on a visit, was monitoring the situation and directed Director General of Police JN Choudhury to arrest the culprits at the earliest and seek assistance of army, if necessary, to bring the situation under control, official sources said in Guwahati.
The Chief Minister also asked ministers Himanta Biswa Sarma, Rakibul Hussain, Nilamani Sen Deka and Rajib Lochan Pegu to rush to the spot.
Gogoi took up the matter with the Meghalaya government seeking its assistance in apprehending the militants and urged it to ensure that the outfit did not create trouble during elections to the Rabha Hasong Autonomous Council to be held between November 13 and 25, the sources said.
Gogoi also directed Chief Secretary Jitesh Khosla and the DGP to take up the matter with their Meghalaya counterparts. He also instructed Goalpara Deputy Commissioner Preetom Saikia to ensure medical care for the injured.
Suspected Meghalaya based GNLA ultras fired from automatic weapons on a group of people gambling on the occasion of Diwali at remote Gendamari village under Agia police station, killing six on the spot.
Another person succumbed to injuries on way to hospital while 10 others were seriously wounded in the attack by GNLA fighting for a separate state since 2009, the sources said.
The government has announced an ex-gratia of Rs six lakh to the next of kin of the deceased and free medical treatment for the injured.


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