BBC Verify uses open-source intelligence, satellite imagery, fact-checking and data analysis to help report complex stories Using new satellite imagery to locate strikes and assess damage across Iran and Israel as the conflict between the two countries enters its fourth day Hello and good morning from the live page team here at BBC Verify.

Israel and Iran traded strikes for a fourth day early Monday, damaging two high-rise residential buildings in central Israel, emergency officials said. Magen David Adom, Israel's emergency aid organization,

While the U.S. insists it is not involved in strikes on Iran, American officials have confirmed military forces have been helping to intercept Iranian missiles fired at Israel.

Israel unleashed airstrikes across Iran for a third day and threatened even greater force as some Iranian missiles evaded Israeli air defenses to strike buildings in the heart of the country.

Israel forces have repeatedly hit Iran’s defenses. Prime Minister Benjamin Netanyahu said on Sunday that Israel had worked to “peel off the layers of protection” of Iranian defenses.

After striking back on Friday night, Iran launched a new wave of strikes toward Israel on Saturday morning. Now, the two countries continue to exchange deadly missiles and threats, with fatalities and injuries reported on both sides.

Israel’s sweeping attack across Iran struck at the heart of Tehran’s nuclear program, delivering a blow to the country’s ability to enrich uranium and potentially setting its nuclear ambitions back by months or years.

Crude oil futures jumped more than 3% Sunday after Israel struck two natural gas facilities in Iran, raising fears that the war will expand to energy infrastructure and disrupt supplies in the region.