By Humeyra Pamuk and Kanishka SinghWASHINGTON, June 24 (Reuters) - U.S. President Donald Trump said on Wednesday it may never be known who was at fault for a deadly strike on a girls' school in Iran on February 28, the first day of the Iran war, that killed scores of children.Reuters first reported in March that an initial internal U.S. military investigation showed U.S. forces were likely responsible for the fatal strike in Minab in southern Iran. The Pentagon has since elevated the probe but it has not acknowledged any preliminary findings.

President Donald Trump said he does not believe the United States will be liable for a missile that landed on an Iranian school this spring.

The US president added that "there were a lot of missiles being fired at that time"