"We have summoned the Indian deputy high commissioner to the foreign office to stress that protection of the Pakistan high commission and Pakistan house is the responsibility of the Indian government," Foreign office spokesman Aizaz Chaudhry said. "We also called for strengthening security of the Pakistani representation in New Delhi," he told PTI.
Some demonstrators gathered in front of "our high commission and Pakistan house", the envoy's residence in New Delhi, and shouted slogans against Pakistan, Chaudhry said.
Another Pakistani official said Indian Deputy High Commissioner Gopal Baglay was given a note verbale on the incident.
Tensions between the countries have increased following skirmishes along the Line of Control over the past two days in which five Indian soldiers were killed and two Pakistani personnel were injured.
Scores of Youth Congress workers held a demonstration outside the Pakistan high commission in New Delhi this afternoon to protest the killing of the five Indian soldiers.
During the demonstration, which started at noon, the protesters shouted anti-Pakistan slogans. Police used water cannons to disperse the protesters when they tried to break barricades and approach the mission.
Police detained around 75 protesters, including about nine women. They were later released.
Image: Activists of the Delhi Pradesh Youth Congress shout slogans behind a police barricade during a protest against Pakistan near Pakistan embassy in New Delhi
Photograph: Adnan Abidi/Reuters
BJP leaders raise with PM Antony's 'goof-up' on LoC killings
Tension along LoC: Pak, India DGMOs talk on hotline
Why a knee-jerk reaction to LoC attack won't help
Sharif-Manmohan meet in US on as per plan: Cong
Pak crosses the line, again. What should India do? Your Say!