Indian Foreign Minister Salman Khurshid said Thursday he was “perplexed” by the killing of two Indian soldiers on the Pakistan border but stressed that a fragile peace process should not be derailed.

His comments came after Pakistan said one of its troops was killed by unprovoked Indian firing in the Line of Control, separating the disputed northern Himalayan state of Kashmir.On Tuesday India said two of its soldiers were killed by Pakistani troops, including one who was beheaded. Pakistan has denied any responsibility.

New Delhi has in the past accused Islamabad of staging border attacks to deflect attention from domestic issues or to draw global attention to the Kashmir issue.But Khurshid said he had no answers this time.

“Why should this happen? It perplexes me. I don’t think anyone on the other side of the border is achieving anything wholesome,” Khurshid told reporters in Paris after meeting with French counterpart Laurent Fabius.

“It’s extremely shocking and unacceptable. We’ve even used the word barbaric and I can’t imagine that anyone would disagree with that on any side of the border. If they take responsibility or not is another matter. We are still arguing about that.