The head of the Arab League is calling on the Iranians to "be careful and reverse course."
Secretary General Ahmed Aboul Gheit noted after meeting with U.N. Secretary-General Antonio Guterres at U.N. headquarters in New York on Friday that there are conflicting reports about how Thursday's tanker incidents occurred.
"We believe that responsibilities need to be clearly defined," he said. "The facts will be revealed, I am sure, it's only a matter of time."