...the latest round of sanctions announced by...

the latest round of sanctions announced by

In this phrase, does 'announced by...' modify 'sanctions' or 'the latest round'?

I think that it should modify 'the latest round' to make sense in meaning.

What do you native English speakers think? Thank you so much as usual!

John Bolton, the former U.S. ambassador to the UN, has described North Korea's nuclear program as the greatest national security threat facing the United States.

In a series of interviews during a political conference on Friday, Bolton warned that once North Korea successfully develops nuclear weapons that can reach the mainland U.S., they could demand Washington to withdraw its troops from South Korea.

He also cast doubt over the effectiveness of the latest round of sanctions announced by President Trump earlier in the day.

He said sanctions would have made a difference if they had come 15 years earlier, and that the U.S. now only have two choices; to either let North Korea have nukes, or prevent it by military force.