Amid rising tensions with Iran U.S. Secretary of State Mike Pompeo met with European Union High Representative Federica Mogherini at the state department.

The meeting comes one day after Mogherini said the European Union will only react to any Iranian breach of the 2015 nuclear deal if the international atomic energy agency formally identifies one.

Worries about a confrontation between Iran and the United States have mounted since attacks last week on two oil tankers near the strategic strait of hormuz shipping lane at the entrance to the gulf. Washington blamed long-time foe Iran for the incidents.