Turkey Orders UN Sanctions Checks on Tehran-Linked Firms Amid US Push to Isolate Iran

Turkish authorities ordered financial institutions to screen for and report dealings with Iran-linked firms subject to UN sanctions, following renewed pressure from Washington — including from President Trump — to further isolate Tehran. The directive follows Turkey's September 18–19 revocation of Bank Mellat's Istanbul license and Mahan Air's September 21 suspension of Turkey routes, underscoring Ankara's widening compliance measures against Iranian-linked financial and commercial networks amid the risk of US secondary sanctions.