Investors have been weighing the odds of further escalation in the conflict and spillover into the broader oil-rich Middle East.

Minister warns Tehran 'will pay price' after eight killed in strikes on Tel Aviv and Haifa - Civilians killed as explosions rock Israeli cities as Iran and Israel exchange missile fire for a fourth da

Israel launched blistering attacks on the heart of Iran's nuclear and military structure Friday, deploying warplanes and drones previously smuggled into the country to attack key facilities and kill top generals and scientists -- a barrage it said was necessary before its adversary got any closer to building an atomic weapon.