President Vladimir Putin says he has secured Israel’s pledge to safeguard Russian personnel at Iran’s Russia-built nuclear power plant and that he has reached out to both sides to try to end the week-old war.

Last week, Israel struck four buildings at the Isfahan nuclear site, among them a uranium conversion facility. The IAEA said there has been no sign of increased radiation at Isfahan, which is roughly 350 kilometers (215 miles) southeast of Tehran.

As Trump considers joining the war in the Middle East, Iran’s ally says there could be potentially perilous consequences for the world.