Israel and Iran have begun a new round of attacks, as the conflict between the two heavily armed rivals enters its fourth day.

When Israel launched its series of strikes against Iran last week, it also issued a number of dire warnings about the country’s nuclear program, suggesting Iran was fast approaching a point of no return in its quest to obtain nuclear weapons and that the strikes were necessary to preempt that outcome.

Israel faced retaliation from Iran after launching missiles against Tehran's leadership and energy infrastructure as part of "Operation Rising Lion" this weekend. Iran's military responded with a wave of missile strikes against Israel,

The dramatic escalation in tensions between Israel and Iran caused a spike in the price of crude and raised fears among oil traders about disruption to shipping in the Strait of Hormuz, one of the world’s most vital waterways.

Qatar said on Tuesday its gas production at the South Pars field is steady and supply is proceeding normally, after the world's largest gas field was struck by Israel on Saturday, prompting Iran to partially suspend its production.

Muslim-majority states in the Middle East and beyond have jointly condemned Israel's military strikes against Iran as the conflict has escalated and urged Israel to refrain from targeting nuclear facilities. Newsweek contacted the Israeli prime minister's office for comment.

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.

Israel's airstrikes have deepened a climate of fear within Iran, where there is a shortage of reliable information. A woman in Tehran said one of the worst things about the attacks is that they usually come without warning.