The truce came after several days of the countries’ most expansive fighting in decades. One Indian official said the country would “deal strongly” with any violations.

The neighboring countries exchanged fire for several days after India's missile attack on Pakistan before reaching a ceasefire on Saturday.

Fears of an all-out conflict between nuclear-armed India and Pakistan have abated with a U.S.-brokered ceasefire, but the wounds of decades of strife are deep.