U.S. President Joe Biden is expected to speak as Russia begins its attack on Ukraine.

The event is scheduled to start at 12:30 p.m. ET. Watch Biden’s remarks in the player above.

Biden condemned Russia for an “unprovoked and unjustified attack” on Ukraine. He promised that the U.S. and its allies “will hold Russia accountable.”

Biden said he plans to speak to the American people Thursday after a meeting of the Group of Seven leaders. More sanctions against Russia are expected to be announced Thursday.

In a written statement, Biden added: “President Putin has chosen a premeditated war that will bring a catastrophic loss of life and human suffering. Russia alone is responsible for the death and destruction this attack will bring, and the United States and its Allies and partners will respond in a united and decisive way. The world will hold Russia accountable.”