U.S. President Donald Trump initially distanced himself from Israel’s surprise attack on Friday that triggered the conflict, but in recent days has hinted at greater American involvement, saying he wants something “much bigger” than a ceasefire.

The Israeli military said it hit an Iranian refueling aircraft at Mashhad airport in eastern Iran. It said it was the longest-range strike it has conducted since the beginning of the operation at 2,300 kilometers from Israel.

As military tensions mount between Israel and Iran, several countries have issued travel advisories, with many asking their nationals to leave. India has evacuated at least 110 of its students from Tehran.