U.S. stocks slumped on Tuesday under the weight of another jump for the price of oil. It was a return to form for financial markets after Wall Street’s worries about Israel’s fighting with Iran had seemed to calm a bit on Monday.

Oil prices surged, stocks dropped and investors flocked to safe havens like gold on Friday after tensions between Israel and Iran escalated, stoking concerns of a broader conflict in the region.

Oil prices leaped, and stocks slumped on worries that escalating violence following Israel’s attack on Iranian nuclear and military targets could damage the flow of crude around the world, along with the global economy.