Authorities in Indian-administered Kashmir have demolished the houses of at least 10 alleged militants and detained more people for questioning as investigations continue into last week's killings of 26 people.

A day after the U.N. appealed for restraint following Tuesday's deadly attack in Indian-administered Kashmir, India reported an exchange of fire across the de facto border in the disputed region.

Anger in Indian-run Kashmir escalated on Monday over sweeping detentions in the hunt for the gunmen who carried out a deadly attack last week that New Delhi blames on arch-rival Pakistan.