"Saddened by the attack in Kokrajhar," Prime Minister Narendra Modi said. "We strongly condemn it." He added the Home Ministry was in touch with the Assam government and monitoring the situation closely. "Terrorists moving in an autorickshaw opened indiscriminate fire at Balajan Tinali area, killing 13 civilians and injuring 20 others," Defence Ministry spokesman Lt. Col. Suneet Newton said.
"The army has launched a massive combing operation, pressing into service specialized troops and tracker dogs. The army will continue its relentless operations against the terrorists," he added.
Assam Police chief Mukesh Sahay said the militants had chosen a soft target. He put the number of attackers at four or five.
Security forces recovered an AK-56 rifle and grenades from the spot. This was the worst terror attack in Assam since December 2014 when the NDFB killed more than 70 Adivasis in Kokrajhar and Tezpur districts. This led to a major crackdown against the NDFB's "anti-talk faction". Chief Minister Sarbananda Sonowal ordered a high alert in view of the Independence Day on August 15.
"We will not tolerate any threat from any group," he said. "The government will not bow to any pressure while tackling terrorist groups."
Sonowal, who took charge of Assam in May at the head of its first BJP government, vowed to deal with the terrorists "very sternly". He said: "No one involved in the crime will be spared." He announced ex gratia of Rs 5 lakh to the families of those killed and told the administration to ensure that the injured got free treatment and to shift the seriously wounded to Guwahati.
A medical team from Guwahati was rushed to Kokrajhar. The Chief Minister told the media here that he had spoken to Modi and Home Minister Rajnath Singh and suggested that "a foreign hand" may be involved. In a bid to avoid retaliatory killings, Sonowal appealed for peace and harmony. Officials said additional paramilitary forces were being rushed to Assam.