President Donald Trump confirmed Monday that Iran attacked a U.S. air base in Qatar in retaliation for America’s weekend strikes on key Iranian nuclear facilities, but he took a notably conciliatory tone toward Tehran in his announcement.

President Trump said Monday the Iranian government offered "early notice" about a series of missile strikes that targeted the U.S. Al Udeid Air Base in Qatar, downplaying Iran's response to the U.S. bombing of three Iranian nuclear sites over the weekend as "very weak."

Qatar issued a statement condemning the Iranian attack and said no casualties were reported. Iran said Monday night that it attacked American forces stationed at Qatar’s Al Udeid Air Base. Trump visited the base and addressed US and Qatari troops there in May during a trip to the region.