Container ships account for roughly 100 of ​the 750 ships ensnared in the Strait of Hormuz ‌backups following U.S. and Israeli attacks on Iran, Jeremy Nixon, CEO of container carrier Ocean Network Express (ONE), said on Monday.

“About 10% of ​the container ship global fleet is caught up ​in this,” Nixon said at S&P Global Market Intelligence’s TPM26 ⁠container shipping conference in Long Beach.

Maritime insurers ceased covering voyages through ​the strait between Iran and Oman, which carries around one-fifth of ​oil consumed globally as well as large quantities of gas, as Iran retaliated against U.S. and Israeli strikes. The commander of the country’s ​Revolutionary Guards told Iranian state television Monday that any ​ship that attempted to transit the strait would be set aflame.