President Obama said this afternoon that he is “deeply disturbed by the crashing of the English embassy” in Iran and that the assault indicates that the Iranian government is not taking its international obligations seriously.

“That kind of behavior is not acceptable, and I strongly urge the Iranian government to hold those who are responsible to task,” Obama told reporters during a bilateral meeting with Prime Minister Mark Rutte of the Netherlands in the Oval Office.

Iranian protesters stormed the British Embassy on Tuesday, ransacking the offices and vandalizing the property.

“They have a responsibility to protect diplomatic outposts. That is a basic international obligation that all countries need to observe, and for rioters, essentially, to be able to overrun the embassy and set it on fire is an indication that the Iranian government is not taking its international obligations seriously,” the president added. “Obviously we’re deeply concerned about that situation and we expect to see some sort of definitive action sometime very quickly.”