Israeli officials have been pushing the United States to join the fray and use its huge bunker-busting bomb to crush Iran’s nuclear capabilities.

Hostilities between Israel and Iran rumbled into a fourth day with little sign of an end to the fighting. Iran fired several waves of drones and missiles over the last 24 hours, while Israel continued hitting the Islamic Republic’s capital,

Crude prices bounced at the start of Asian trading before flitting between gains and losses, as markets weighed the odds of a resolution to the Israel-Iran conflict against the prospects of escalation.