The head of the UN atomic watchdog has warned that an Israeli strike on Iran’s southern nuclear plant of Bushehr could trigger a regional disaster, adding that radiation had not yet been detected in the conflict, AFP reports.

“Countries of the region have reached out directly to me over the past few hours to express their concerns, and I want to make it absolutely and completely clear — in case of an attack on the Bushehr nuclear power plant, a direct hit would result in a very high release of radioactivity,” Rafael Grossi told the UN Security Council.