Indian security forces opened fire Saturday morning on a violent mob in the south Kashmir Shopian district of Indian-administered Kashmir, wounding four protesters, a district official said.

The mob was protesting the killing of a fellow villager in an Indian army ambush in the early morning hours. A companion of the villager was also wounded in the shooting in Chewan village, about 35 miles from the capital, Srinagar, an Indian army spokesman said.

Indian security forces opened fire on the rampaging mob, which subjected passing army vehicles to heavy stone-pelting and later torched two army trucks. Four demonstrators were injured and evacuated to a hospital in Srinagar for treatment, according to Shopian district magistrate Abdul Majid Khanday.

The two incidents - the killing of the villager and the firing on the mob - triggered high tension in the area, prompting Indian authorities to rush in heavy reinforcements to beef up security.

Kashmir observed a total shutdown Friday after a court sentenced to death two members of the Jammu and Kashmir Islamic Front, who had been found guilty in connection with an explosion in a central Delhi market in 1996 that killed 13 people.