PM Narendra Modi condemns Uri attack, 17 soldiers dead

Militants attacked an Indian army brigade headquarters near the de factor border with Pakistan on Sunday, killing 17 soldiers in one of the most deadly attacks in the northern region of Kashmir in a quarter-century-old insurgency.

Four "fidayeen" - or commando-style gunmen willing to fight to the death - were confirmed killed after penetrating the base in Uri near the Line of Control with Pakistan, an Indian army spokesman said.

Prime Minister Narendra Modi strongly condemned what he called the "cowardly terror attack".

"I assure the nation that those behind this despicable attack will not go unpunished," Modi said in a series of Twitter posts.

Television reporters at the scene said the dawn raid had surprised soldiers in their sleep. The attackers set fire to a building before the four were killed in a gunfight that lasted several hours.

An army spokesman confirmed that the number of soldiers killed in the attack had risen to 17, making the toll far worse than a similar raid on Pathankot army base in Punjab in January that India blamed on Pakistan-based militants.

Television footage showed helicopters flying to evacuate the injured as an operation continued to secure the area. Smoke rose from the compound, set in mountainous terrain. The Defence Ministry put the number of wounded at 35.

The raid comes amid heightened tension in India's only Muslim-majority region, which has faced more than two months of protests following the July 8 killing of a popular separatist commander.

At least 78 civilians have been killed and thousands injured in street clashes with the Indian security forces, who have been criticised by human rights groups for using excessive force including shotguns that fire pellets that have blinded people.

Indian-ruled Kashmir is one of the world's most militarised regions, with hundreds of thousands of soldiers, paramilitaries and police deployed to guard the frontier with Pakistan and contain a restive people with strong leanings towards greater autonomy and even independence.

FORCE ACTIVATION

Home Minister Rajnath Singh chaired a crisis meeting in New Delhi and cancelled trips to Russia and the United States. Defence Minister Manohar Parrikar will travel to Uri to oversee the operation to secure the area and investigate the attack.

"It is clearly a case of cross-border terror attack. We don't know which militant group is involved," a senior Home Ministry official told Reuters.

Pakistan rejected allegations that it was involved. "India immediately puts blame on Pakistan without doing any investigation. We reject this," foreign ministry spokesman Nafees Zakaria told Reuters.

There has been no claim of responsibility.

The military death toll was the worst in Indian-ruled Kashmir since a raid in December 2014, also near Uri which is to the west of the region's main city of Srinagar, in which eight soldiers and three police were killed.

Before this attack, 102 people had been killed in militant attacks in India's part of the Himalayan region this year. Among them were 30 security personnel, 71 militants and one civilian, according to a tally by the New Delhi-based South Asia Terrorism Portal.

Modi recently raised the stakes in the nuclear-armed neighbours' decades-old feud by expressing support for separatists in Pakistan's resource-rich Baluchistan province.

Pakistan has, meanwhile, called on the United Nations and the international community to investigate atrocities it alleges have been committed by Indian security forces in Kashmir.

The United Nations is holding its annual general assembly in New York, where Kashmir is likely to come onto the agenda.

Separately, a prominent Kashmiri rights activist has been held in Srinagar after being prevented from catching a flight to a U.N. Human Rights Council meeting in Geneva.

Relations between India and Pakistan have been on edge since the New-Year attack on an Indian air force base in Punjab, near the border with Pakistan, that killed seven uniformed men.

India has blamed a Pakistan-based militant group for that attack but, after initial progress, an attempt to conduct a joint investigation has lost momentum. The two sides have frozen a tentative peace dialogue.