The BSF ADG said that it was very unfortunate.
The BSF said that it had honoured the ceasefire agreed at a recent sector commander-level meeting but Pakistan resorted to unprovoked firing.
Thousands residing in three J&K border districts flee "The martyrs have been identified as assistant commandant Jatinder Singh, sub-inspector Rajesh Kumar, assistant sub-inspector Ram Niwas and constable Hans Raj".
Expressing concern over the rising incidents of terror attacks during the unilateral ceasefire announced by the Centre during the holy month of Ramzan, National Conference vice-president and former chief minister Omar Abdullah tweeted: "With the militant organisations doing their best to make sure the ceasefire is a failure they will only have themselves to blame if the security forces come back at them even harder when the ceasefire ends". Fifty two people including 26 security personnel have been killed on the LoC and global border in Jammu region this year so far.
On May 29, the Directors General of Military Operations of India and Pakistan had established a special hotline contact and agreed to undertake honest measures to improve the existing situation, ensuring peace and avoidance of hardships to the civilians along the LoC and Working Boundary. "One jawan has been injured", said a BSF officer of Jammu Frontier.
In a statement, the BSF said, "Around 2140 hours Pak Rangers Post Asraf started unprovoked firing on BOP Chamliyal with flat and high trajectory weapons. We lost four of our personnel".
With the death of the four BSF men, Pakistan Rangers have killed 19 people and injured 67 others besides displacing over a lakh people from the border areas of Jammu, Samba and Kathua districts since May 15. "Dialogue between Pakistan and India over Kashmir should also resume, so that the long-festering Kashmir dispute is resolved in accordance with United Nations resolutions", he further said in the concluding tweet.
A similar truce was agreed upon on May 21, after a wave of ceasefire violations left two BSF jawans and four civilians dead.
On June 4, the border-guarding forces of India and Pakistan met at the Octroi post here and held a 15-minute meeting during which both sides made a decision to "develop confidence" between them.
The Pakistani side gave an assurance that they would not initiate any cross-border firing and the BSF reciprocated by saying that it would only retaliate when provoked.