Qatar has not received an invitation to two summits, a foreign ministry official said on Monday, in apparent reference to emergency meetings of Gulf and Arab leaders in Saudi Arabia earmarked for this month after attacks on Saudi oil assets.

Saudi King Salman on Sunday proposed holding the two summits in Mecca on May 30 to discuss implications of last week’s drone strikes on oil installations in the kingdom and attacks on four vessels, including two Saudi oil tankers, off the coast of the United Arab Emirates.