Pakistan will exert restraint to avoid escalation with India along their disputed border in Kashmir, Prime Minister Nawaz Sharif said on Wednesday after an Indian mortar shell killed a Pakistani civilian, according to DPA. "Pakistan will continue to respond to the situation with restraint and responsibility in the hope that steps would be taken by India to help reduce tensions," Sharif said at a press conference with visiting UN Secretary General Ban Ki-moon. He added: "We have to defuse tension and de-escalate the situation. Our objective is peace. For that what we need is more diplomacy." Pakistan said earlier that an "unprovoked" Indian shelling attack killed one civilian and injured another in Kashmir.