The new assaults in the fuel-shipping waterway were the most in a single day since late April, according to the U.N. International Maritime Organization.

Iranian state television said the liquefied natural gas tanker came under attack after ignoring warnings but did not directly claim the assault.

An oil tanker caught fire after being struck by an "unknown projectile" while transiting the Strait of Hormuz off the coast of Oman, British maritime authorities said on Tuesday,…