India, Sept. 17 -- UN-backed human rights experts said Thursday they had found "reasonable grounds" to believe the United States committed war crimes in two airstrikes in Iran, including one that hit a school in the southern city of Minab.

The International Fact-Finding Mission on Iran said the findings concerned two strikes that killed at least 178 civilians, including women and children.

At the start of the US-Israeli war against Iran in February, at least one US missile struck the Shajareh Tayyebeh school in Minab, according to an Associated Press investigation. Iranian state media reported that 168 people were killed, most of them children, though there has been no final accounting of the casualties.

"Following the United States an...