India has started to evacuate its nationals from Israel as the ongoing conflict in the Middle East escalated with the US attacking three nuclear sites in Iran on Sunday, sources said.

The Ministry of External Affairs (MEA) had said this week that India will evacuate those Indian nationals "who wish to leave" Israel.

"Their travel from Israel to India will be facilitated through the land borders and thereafter by air to India," it had said.

"The government of India accords the highest priority to the safety and security of Indian nationals abroad," the MEA said.

All Indian nationals have been asked to register themselves with the Embassy of India in Tel Aviv at https://www.indembassyisrael.gov.in/indian_national_reg if not already registered.

"In case of any queries, they may contact the 24/7 Control Room established at Embassy of India, Tel Aviv: telephone numbers: +972 54-7520711; +972 54-3278392; email: cons1.telaviv@mea.gov.in," it said.

About 18,000 Indian nationals are currently living in Israel.