Both India and Pakistan have accused the other's troops of violating the ceasefire and crossing the LoC to kill jawans. The tension began last Sunday when the Pakistani army accused India of killing one of its soldiers and wounding another in a cross-border attack. India said its troops had opened fire following a Pakistani mortar attack, but denied they crossed the border. Four soldiers have been killed in the last five days. This week marks a peak in hostility since 2003, when the ceasefire was agreed upon.