Fragile ceasefire holds as US awaits Iran response to latest proposal to end war

Iran has mostly blocked the critical waterway for global energy since the US and Israel launched the war on February 28

Cargo ships stranded in the Strait of Hormuz (Amirhosein Khorgooi/ISNA via AP)

A tenuous ceasefire appeared to be holding on Saturday after the United States struck two Iranian oil tankers.

Attacks on Friday cast doubt on the month-old ceasefire that the US has insisted is still in effect.