SRINAGAR (AFP) - One demonstrator was killed and five injured on Sunday in Kashmir when Indian troops fired bullets to disperse violent protests over the death of a Kashmiri youth, police and witnesses said. Rafiq Bangroo died on Saturday, days after being injured in Srinagar in what his family allege was a beating by paramilitary forces. Police say they are investigating his death. Enraged by Bangroos death - the second in less than ten days of a civilian allegedly at the hands of security forces - hundreds of Kashmiris took to the streets on Sunday chanting: We will spill blood for blood. Authorities immediately imposed a curfew in parts of Srinagar and deployed hundreds of police and paramilitary troops to prevent further protests, police and witnesses said. However, hundreds of mourners carrying the coffin of the man killed on Sunday defied the restrictions. Police made several attempts to stop them by firing warning shots and lobbing teargas shells. Three people were taken to hospital with teargas injuries, officials said. Separately, India claimed that two civilian porters working for the Indian army were killed Sunday in firing by Pakistani troops along the Line of Control. Two Indian soldiers were also injured in the incident along LoC. Two of our civilian porters were killed and two soldiers injured in unprovoked firing by Pakistani troops, Indian army spokesman Vineet Sood told AFP. He said Indian troops did not retaliate.