May 26 (UPI) -- Iran said the U.S. strikes on Iran Monday were a "gross violation" of the fragile cease-fire between the two countries that began on April 8. "The United States committed a gross violation of the ceasefire in the Hormozgan region in the past 48 hours. ... Iran holds the U.S. regime responsible for all the consequences resulting from these aggressive and unjustified actions," the Iranian Foreign Ministry said in a statement Tuesday. Gen. Seyed Majid Mousavi, commander of the