WASHINGTON (Reuters) - U.S. President Donald Trump on Monday ordered the expulsion of 60 Russians from the United States and closed the Russian consulate in Seattle over a nerve agent attack earlier this month in Britain, senior U.S. officials said.

The order includes 12 Russian intelligence officers from Russia’s mission to the United Nations headquarters in New York and reflects concerns that Russian intelligence activities have been increasingly aggressive, senior U.S. administration officials told reporters, speaking on condition of anonymity.