Gogoi decided to seek a CBI enquiry after a high-level meeting with the Army, Intelligence and senior police officials at Tezpur today.
The Chief Ministers of the two states also spoke to each other over phone during the day on the killing of 10 CPI(ML) supporters at Chauldhuwa village at Behali Reserve Forest yesterday.
"It's unfortunate. I have discussed the issue with Arunachal Pradesh CM," Gogoi said.
He said that border outpost would be set up on the inter-state boundary immediately and Army personnel along with state police would patrol the area.
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In Itanagar, Tuki said that he would write to the Union Home Ministry for an independent enquiry into the killings.
"I am going to plead the Union Ministry of Home Affairs to institute an independent enquiry into the incident," he said in a release.
"I condemn the incident in the strongest words and law should take its own course. It is really trying times for both the states. The pain is equal for all of us as the incident is highly condemnable," he added.
BJP national Vice-President Bijoya Chakravarty led a team of party workers to Behali and condemn the incident.
Meanwhile in Assam, an indefinite economic blockade was announced by a number of organisations to protest the killings.