"(I) was briefed early this morning about the news that five of our soldiers had been killed on the LoC. My heartfelt condolences to the next of the kin," Abdullah said on microblogging site Twitter.
"These incidents don't help efforts to normalise or even improve relations with Pakistan and call into question the Pakistan's government's recent overtures," he said.
Pakistani troops attacked an Indian post along the Line of Control in the Poonch sector late last night, killing five Indian soldiers.