Oil prices resumed their upward climb and U.S. futures were lower early Tuesday after Israel’s military issued an evacuation warning to 330,000 people in Iran’s capital Tehran. Asian shares were mixed.

Blasts have been heard in Tehran and sirens have sounded in Israel as US president convenes National Security Council.

Iran has arrested dozens of people on suspicion of spying as fears grow in the Islamic Republic over the extent of its infiltration by Israel’s Mossad intelligence service.

Haifa and Tel Aviv struck by Iranian missiles as U.S. embassy in Israel directs government employees and families to shelter in place at home.

The conflict between Israel and Iran has wreaked considerable damage in both countries and caused casualties on both sides.

"Israel is being assisted this way or that way by some Iranians," ex-Israeli National Security chief Giora Eiland told Newsweek.

KANANASKIS, Alberta (Reuters) -French President Emmanuel Macron said on Monday that U.S. President Donald Trump had made an offer for a ceasefire between Israel and Iran. "There is indeed an offer to meet and exchange. An offer was made especially to get a ceasefire and to then kick-start broader discussions," Macron told reporters at the G7.

President Donald Trump in about eight hours went from suggesting a nuclear deal remained “achievable” to urging Tehran’s 9.5 million residents to flee for their lives.