Iran’s parliament endorsed a measure to close the Strait of Hormuz, a critical global transit chokepoint, in response to overnight U.S. airstrikes on Iranian nuclear sites, Iranian state media reported Sunday.

Iran’s state-owned broadcaster Press TV reported that the legislature had reached a consensus to close the strait. The final decision rests with Iran’s Supreme National Security Council, it said.

The channel, which separates Iran and Oman, is a vital gateway for oil shipments from Persian Gulf countries.

The parliamentary endorsement comes directly after the U.S. launched strikes on Iran’s Fordo, Natanz and Isfahan nuclear facilities.