The sixth round of U.S.-Iran nuclear talks will be held on Sunday in Muscat, the Omani foreign minister said on Thursday, after U.S. President Donald Trump reiterated that Tehran would not be allowed to have a nuclear weapon.

Turkish President Tayyip Erdogan told his Iranian counterpart Masoud Pezeshkian Prime Minister Benjamin Netanyahu was trying to set the region on fire and to sabotage nuclear talks with attacks.

Iran and the United States will hold a sixth round of negotiations over Tehran’s rapidly advancing nuclear program this Sunday in Oman, the sultanate’s foreign minister said Thursday, as regional tensions have spiked in recent days.